Cita APA (7a ed.)

Ostrom, E., Whitaker, G., & Parks, R. (1977). The Police Services Study. Workshop in Political Theory and Policy Analysis.

Cita Chicago Style (17a ed.)

Ostrom, Elinor, G. Whitaker, y R. Parks. The Police Services Study. [Erscheinungsort nicht ermittelbar]: Workshop in Political Theory and Policy Analysis, 1977.

Cita MLA (9a ed.)

Ostrom, Elinor, et al. The Police Services Study. Workshop in Political Theory and Policy Analysis, 1977.