APA Style
Duffy, Karen G.. (2008).
Annual edition : psychology.-- .
America:
McGraw-Hill.
Chicago Style
Duffy, Karen G..
Annual edition : psychology.--.
America:
McGraw-Hill,
2008.
Buku.
MLA Style
Duffy, Karen G..
Annual edition : psychology.--.
America:
McGraw-Hill,
2008.
Buku.
Turabian Style
Duffy, Karen G..
Annual edition : psychology.--.
America:
McGraw-Hill,
2008.
Buku.