APA

Lloyd T., . (1943). The mackenzie waterway a northern supply route. New York-US: Geografical record.

Chicago

Lloyd Trevor, . 1943. The mackenzie waterway a northern supply route. New York-US: Geografical record.

Harvard

Lloyd T., . (1943). The mackenzie waterway a northern supply route. New York-US: Geografical record.

MLA

Lloyd Trevor, . The mackenzie waterway a northern supply route. New York-US: Geografical record. 1943.