APA (7th ed.) Citation

Johnstone, J. (1930). Life in the sea (2nd ed.). University Press.

Chicago Style (17th ed.) Citation

Johnstone, James. Life in the Sea. 2nd ed. Cambridge: University Press, 1930.

MLA (9th ed.) Citation

Johnstone, James. Life in the Sea. 2nd ed. University Press, 1930.