Gaya APA
Duffy, Karen G.. (2007).
Annual editions: psychology 2007-2008 (ed. 37).
New York:
McGraaw Hill.
Gaya Chicago
Duffy, Karen G..
Annual editions: psychology 2007-2008.
ed. 37
New York:
McGraaw Hill,
2007.
Textbook.
Gaya MLA
Duffy, Karen G..
Annual editions: psychology 2007-2008.
ed. 37
New York:
McGraaw Hill,
2007.
Textbook.
Gaya Turabian
Duffy, Karen G..
Annual editions: psychology 2007-2008.
ed. 37
New York:
McGraaw Hill,
2007.
Textbook.