APA Style
Benton, W. (1973).
Encyclopedia Britannica Macropedia Knowledge in Depth 8 : Geraniales Hume .
Chicago:
Encyclopaedia Britannica, Inc.
MLA Style
Benton, William.
"Encyclopedia Britannica Macropedia Knowledge in Depth 8 : Geraniales Hume".
Chicago:
Encyclopaedia Britannica, Inc,
1973.
Text.