Cita APA (7th ed.)

Hagen, E. E. (1962). On the theory of social change. Feffer and Simons.

Cita Chicago (17th ed.)

Hagen, Everett E. On the Theory of Social Change. Bombay: Feffer and Simons, 1962.

Cita MLA (9th ed.)

Hagen, Everett E. On the Theory of Social Change. Feffer and Simons, 1962.