Cita APA (7a ed.)

Landis, J. R. (1969). Current perspectives on social problems (2. ed.). Wadsworth.

Cita Chicago Style (17a ed.)

Landis, Judson R. Current Perspectives on Social Problems. 2. ed. Belmont, Calif: Wadsworth, 1969.

Cita MLA (9a ed.)

Landis, Judson R. Current Perspectives on Social Problems. 2. ed. Wadsworth, 1969.