APA

Dufek G. J., . (1959). Through the frozen frontier: the exploration of Antarctica. New York: Harcourt, Brace.

Chicago

Dufek George John, . 1959. Through the frozen frontier: the exploration of Antarctica. New York: Harcourt, Brace.

Harvard

Dufek G. J., . (1959). Through the frozen frontier: the exploration of Antarctica. New York: Harcourt, Brace.

MLA

Dufek George John, . Through the frozen frontier: the exploration of Antarctica. New York: Harcourt, Brace. 1959.