For my paper, I want to write this exact phrase from a book:

"Panic attacks are specified periods of sudden onset of intense terror...."

This is an exact sentence in a book. I need to site this right after the sentance or group of sentances from this book. How do I do this? Do I write the author of the book, and year?

You need to have each source of information cited in TWO places:

1. the Works Cited page that is placed after the last page of your paper, and
2. in parentheses in the text of your paper, immediately after the quotation or paraphrase.

For example, in MLA style, this would go on the Works Cited page (with proper indentation for the second and following lines):

Du Bois, W.E.B. The Souls of Black Folk. Chicago, 1903. Project Bartleby. Ed. Steven van Leeuwen. Dec. 1995. Columbia U. 2 Dec. 2003
<www.cc.columbia.edu/acis/bartleby/dubois/>.

... and this would go immediately after the quotation or whatever:
(Du Bois)

The information in parentheses in the text needs to be as brief as possible. That's why there's a Works Cited page – for all the details of the listing.

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Here's a good place for information on citing in MLA format:
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Hold your cursor over the words CITING SOURCES in the left column and then click on whatever type of source you need help with. Many examples will show up. You will get two examples for each type of reference – one for the Works Cited page and one for the parenthetical (in-text) citation.

You can also see what a Works Cited page looks like – click on Sample Works Cited in the left column.

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If you need to cite in APA or another format, go here:

http://nutsandbolts.washcoll.edu/
In the column at the left, scroll down until you see the different topics on evidence and the different styles (MLA, APA, Chicago, etc.).

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This will help you with APA bibliographies.

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Also for APA.

Be sure to check your instructions to determine which style guide you're supposed to follow -- MLA or APA.

To properly cite the phrase from the book in your paper, you would need to follow a specific citation format, such as APA (American Psychological Association) or MLA (Modern Language Association). Here's an example of how you can cite the phrase using both formats:

APA Format:
In-text citation: (Author's Last Name, Year, p. Page Number)
Reference List:
Author's Last Name, First Initial. Second Initial. (Year). Title of the book. City, State abbreviation: Publisher.

Example:
In-text citation: (Smith, 2015, p. 42)
Reference List:
Smith, J. (2015). Title of the book. City, State abbreviation: Publisher.

MLA Format:
In-text citation: (Author's Last Name Page Number)
Works Cited:
Author's Last Name, First Name. Title of the Book. Publisher, Year of publication.

Example:
In-text citation: (Smith 42)
Works Cited:
Smith, John. Title of the Book. Publisher, 2015.

In both cases, you would replace "Author's Last Name" with the actual last name of the book's author, "Title of the book" with the title of the specific book, "Year" with the year of publication, and "Page Number" with the relevant page number from which the phrase is quoted. Also, ensure that you use italics or underlining for the title of the book, depending on the formatting style you are following.

Remember to consult the specific style guide recommended by your instructor or institution for the accurate format to use in your paper.