APA ציטוט

Hagen, E. E. (1962). On the theory of social change. Foffer & simons.

Chicago Edition Citation

Hagen, Everett E. On the Theory of Social Change. New York: Foffer & simons, 1962.

ציטוט MLA

Hagen, Everett E. On the Theory of Social Change. Foffer & simons, 1962.