APA (7th ed.) Citation

Gilbert, P. W. (1981). Introduction. Oceanus, 24(4), 3.

Chicago Style (17th ed.) Citation

Gilbert, Perry W. "Introduction." Oceanus 24, no. 4 (1981): 3.

MLA (9th ed.) Citation

Gilbert, Perry W. "Introduction." Oceanus, vol. 24, no. 4, 1981, p. 3.