Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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