Gaya APA
Hilgard, E, R. (1962).
Introduction to Psychology (Third Edition).
United States of America:
Harcourt, Brace & World Inc..
Gaya MLA
Hilgard, Ernest, R.
"Introduction to Psychology".
Third Edition
United States of America:
Harcourt, Brace & World Inc.,
1962.
Teksbook.