APA (7th ed.) Citation

(1940). The United States Antarctic Service , 1939–41. Polar Record, 3(20), 327.

Chicago Style (17th ed.) Citation

"The United States Antarctic Service , 1939–41." Polar Record 3, no. 20 (1940): 327.

MLA (9th ed.) Citation

"The United States Antarctic Service , 1939–41." Polar Record, vol. 3, no. 20, 1940, p. 327.