Which source did the author of this report use for information about Notre Dame's flying buttresses?
A.
Angela Warren's NY Times article
B.
Notre Dame by Pierre Du Bois
C.
Jonathan Deppman's book
D.
Clipart. Com's photo
A.
Angela Warren's NY Times article
B.
Notre Dame by Pierre Du Bois
C.
Jonathan Deppman's book
D.
Clipart. Com's photo