APA استشهاد

Gould, J. (1965). Penguin survey of the social sciences1965 (Pelican psychology series.). Penguin Books.

استشهاد بنمط شيكاغو

Gould, Julius. Penguin Survey of the Social Sciences1965. Pelican psychology series. Australia: Penguin Books, 1965.

MLA استشهاد

Gould, Julius. Penguin Survey of the Social Sciences1965. Pelican psychology series. Penguin Books, 1965.