Gaya APA
Hilgard, E, R.
(1967).
Introduction to psychology
(
4th. ed)
.
New York:
Harcourt, Brace & World.
Gaya MLA
Hilgard, Ernest, R.
"Introduction to psychology".
4th. ed
New York:
Harcourt, Brace & World,
1967.
Text.