Cita APA

Gregory,J.S.(Editor). (1975). The Geography of the U.S.S.R.: An introductory survey. Novosti Press Agency Pub. House.

Citación estilo Chicago

Gregory,J.S.(Editor). The Geography of the U.S.S.R.: An Introductory Survey. Moscow: Novosti Press Agency Pub. House, 1975.

Cita MLA

Gregory,J.S.(Editor). The Geography of the U.S.S.R.: An Introductory Survey. Novosti Press Agency Pub. House, 1975.