APA (7th ed.) Citation

Hewlett, S., & Hewlett, K. G. (1976). Sea life of the Pacific Northwest. McGraw-Hill Ryerson.

Chicago Style (17th ed.) Citation

Hewlett, Stefani, and K. Gilbey Hewlett. Sea Life of the Pacific Northwest. Toronto ; New York: McGraw-Hill Ryerson, 1976.

MLA (9th ed.) Citation

Hewlett, Stefani, and K. Gilbey Hewlett. Sea Life of the Pacific Northwest. McGraw-Hill Ryerson, 1976.