Gaya APA
Pettijohn, Terry F. (1987).
Psychology .
Connecticut:
THE DUSHKIN.
Gaya Chicago
Pettijohn, Terry F.
Psychology.
Connecticut:
THE DUSHKIN,
1987.
.
Gaya MLA
Pettijohn, Terry F.
Psychology.
Connecticut:
THE DUSHKIN,
1987.
.
Gaya Turabian
Pettijohn, Terry F.
Psychology.
Connecticut:
THE DUSHKIN,
1987.
.