Laird, R. F., & Hoffmann, E. P. (1986). Soviet foreign policy in a changing world. Walter de Gruyter.
Cita Chicago Style (17a ed.)Laird, Robbin F., y Erik P. Hoffmann. Soviet Foreign Policy in a Changing World. Berlin [etc.]: Walter de Gruyter, 1986.
Cita MLA (9a ed.)Laird, Robbin F., y Erik P. Hoffmann. Soviet Foreign Policy in a Changing World. Walter de Gruyter, 1986.
Precaución: Estas citas no son 100% exactas.