posted by Mike .
Can someone tell me when you use both a double and single quote mark in an essay. We are writing an essay with quotes from a book, and in the example sometines it shows "'I had every reason to ...'" and other times it's just "I had every reason to believe..." It says single quote marks are for setting off a quotation within another quotation, so if you quote from a book do you use "'??
Here's an example from the site linked below.
"John Doe cited a sample done by Larry Jones that revealed 'ten percent of the air we breath is polluted.'"
Thank you for your help.