APA

Nikiforoff C., . (1941). The history of glaciation in nothern eurasia. New York-US: Geografical record.

Chicago

Nikiforoff C.C, . 1941. The history of glaciation in nothern eurasia. New York-US: Geografical record.

Harvard

Nikiforoff C., . (1941). The history of glaciation in nothern eurasia. New York-US: Geografical record.

MLA

Nikiforoff C.C, . The history of glaciation in nothern eurasia. New York-US: Geografical record. 1941.