APA (7th ed.) Citation

Cushing, D. H., & Walsh, J. J. (1976). The ecology of the seas. W. B. Saunders.

Chicago Style (17th ed.) Citation

Cushing, D. H., and J. J. Walsh. The Ecology of the Seas. Filadelfia: W. B. Saunders, 1976.

MLA (9th ed.) Citation

Cushing, D. H., and J. J. Walsh. The Ecology of the Seas. W. B. Saunders, 1976.