Cita APA (7a ed.)

Berking, H. (1999). Sociology of giving. Sage.

Cita Chicago Style (17a ed.)

Berking, Helmuth. Sociology of Giving. London ; Thousand Oaks, CA: Sage, 1999.

Cita MLA (9a ed.)

Berking, Helmuth. Sociology of Giving. Sage, 1999.