APA (7th ed.) Citation

Armstrong, T. (1949). The voyage of the Komet along the Northern Sea Route, 1940. Polar Record, 5(37-38), 291.

Chicago Style (17th ed.) Citation

Armstrong, Terence. "The Voyage of the Komet Along the Northern Sea Route, 1940." Polar Record 5, no. 37-38 (1949): 291.

MLA (9th ed.) Citation

Armstrong, Terence. "The Voyage of the Komet Along the Northern Sea Route, 1940." Polar Record, vol. 5, no. 37-38, 1949, p. 291.