APA (7th ed.) Citation

Laws, R. M. (1952). Seal-marking methods. Polar Record, 6(43), 359.

Chicago Style (17th ed.) Citation

Laws, R. M. "Seal-marking Methods." Polar Record 6, no. 43 (1952): 359.

MLA (9th ed.) Citation

Laws, R. M. "Seal-marking Methods." Polar Record, vol. 6, no. 43, 1952, p. 359.