Cita APA (7a ed.)

Blumberg, H. H. (1983). Small groups and social interaction. Wiley.

Cita Chicago Style (17a ed.)

Blumberg, Herbert H. Small Groups and Social Interaction. Chichester [u.a.]: Wiley, 1983.

Cita MLA (8a ed.)

Blumberg, Herbert H. Small Groups and Social Interaction. Wiley, 1983.