APA引文

Thorp, J. H., & Covich, A. P. (1991). Ecology and classification of North American freshwater invertebrates. Academic Press.

Chicago Edition Citation

Thorp, James H., and Alan P. Covich. Ecology and Classification of North American Freshwater Invertebrates. San Diego, CA: Academic Press, 1991.

MLA引文

Thorp, James H., and Alan P. Covich. Ecology and Classification of North American Freshwater Invertebrates. Academic Press, 1991.