Cita APA (7a ed.)

(1979). Pergamon policy studies: PPS. Pergamon Press.

Cita Chicago Style (17a ed.)

Pergamon Policy Studies: PPS. New York, NY [u.a.]: Pergamon Press, 1979.

Cita MLA (8a ed.)

Pergamon Policy Studies: PPS. Pergamon Press, 1979.