APA

Lydolph Paul E, . (1964). Geography of the U.S.S.R. New York; London; Sydney: .

Chicago

Lydolph Paul E, . 1964. Geography of the U.S.S.R. New York; London; Sydney: .

Harvard

Lydolph Paul E, . (1964). Geography of the U.S.S.R. New York; London; Sydney: .

MLA

Lydolph Paul E, . Geography of the U.S.S.R. New York; London; Sydney: . 1964.