Gaya APA
PETTIJOHN,Terry F.. (1989).
Psychology;a Councise Introduction .
America:
the Dushkin Publishing.
Gaya Chicago
PETTIJOHN,Terry F..
Psychology;a Councise Introduction.
America:
the Dushkin Publishing,
1989.
Text.
Gaya MLA
PETTIJOHN,Terry F..
Psychology;a Councise Introduction.
America:
the Dushkin Publishing,
1989.
Text.
Gaya Turabian
PETTIJOHN,Terry F..
Psychology;a Councise Introduction.
America:
the Dushkin Publishing,
1989.
Print.