Cita APA (7a ed.)

Hagen, E. (1962). On the theoru of social change. Vakils,Feffer and Simons Private.

Cita Chicago Style (17a ed.)

Hagen, Everett. On the Theoru of Social Change. Illinois: Vakils,Feffer and Simons Private, 1962.

Cita MLA (8a ed.)

Hagen, Everett. On the Theoru of Social Change. Vakils,Feffer and Simons Private, 1962.