Cita APA (7th ed.)

Cole, J. (1967). A geography of the U.S.S.R. Penguin.

Cita Chicago (17th ed.)

Cole, John. A Geography of the U.S.S.R. Middlesex: Penguin, 1967.

Cita MLA (9th ed.)

Cole, John. A Geography of the U.S.S.R. Penguin, 1967.