Cita APA (7a ed.)

Schomburg, C. E. (1982). Groups and communities ([Bd.] 2.). Economy.

Cita Chicago Style (17a ed.)

Schomburg, Carl E. Groups and Communities. [Bd.] 2. Oklahoma City [u.a.]: Economy, 1982.

Cita MLA (9a ed.)

Schomburg, Carl E. Groups and Communities. [Bd.] 2. Economy, 1982.