Land of the Soviets.

MLA

Gregory, J.S, and J.F Horrabin. Land of the Soviets. New York: Penguin, 1946.

APA

Gregory, J., & Horrabin, J. (1946). Land of the Soviets. New York: Penguin.

Chicago

Gregory, J.S., and J.F Horrabin. Land of the Soviets. New York: Penguin, 1946.