APA (7th ed.) Citation

Hagen, E. E. (1962). On the theory of social change: How economic growth begins. Feffer & Simons.

Chicago Style (17th ed.) Citation

Hagen, Everett Einar. On the Theory of Social Change: How Economic Growth Begins. New York, NY: Feffer & Simons, 1962.

MLA (9th ed.) Citation

Hagen, Everett Einar. On the Theory of Social Change: How Economic Growth Begins. Feffer & Simons, 1962.