APA (7th ed.) Citation

Pendergrast, J. G., & Cowley, D. R. (1966). An introduction to New Zealand freshwater insects. Collins.

Chicago Style (17th ed.) Citation

Pendergrast, J. G., and D. R. Cowley. An Introduction to New Zealand Freshwater Insects. Auckland: Collins, 1966.

MLA (9th ed.) Citation

Pendergrast, J. G., and D. R. Cowley. An Introduction to New Zealand Freshwater Insects. Collins, 1966.