Gaya APA
Zimbardo, P, G., Ruch, F, L.
(1980).
Essentials of psychology and life
(
10th ed)
.
London:
Scott Foresman.
Gaya MLA
Zimbardo, Philip, G.., Ruch, Floyd, L..
"Essentials of psychology and life".
10th ed
London:
Scott Foresman,
1980.
Text.