Gaya APA
Jr., L, E, B., Ekstrand, B, R. (1973).
PSYCHOLOGY: ITS PRINCIPLES AND MEANINGS .
California:
THE DRYDEN PRESS.
Gaya MLA
Jr., Lyle, E., Bourne., Ekstrand, Bruce, R..
"PSYCHOLOGY: ITS PRINCIPLES AND MEANINGS".
California:
THE DRYDEN PRESS,
1973.
Textbook.