APA (7th ed.) Citation

Ryder, R. E. D. (1946). Naval Participation in the Discovery of the North-West Passage. Polar Record, 4(31), 309.

Chicago Style (17th ed.) Citation

Ryder, R. E. D. "Naval Participation in the Discovery of the North-West Passage." Polar Record 4, no. 31 (1946): 309.

MLA (9th ed.) Citation

Ryder, R. E. D. "Naval Participation in the Discovery of the North-West Passage." Polar Record, vol. 4, no. 31, 1946, p. 309.