APA-čujuhus (7. p.)
ebrary, Inc, Thorp, J. H., & Covich, A. P. (2001). Ecology and classification of North American freshwater invertebrates (2nd ed.). Academic Press.
Chicago-čujuhus (17. p.)
ebrary, Inc, James H. Thorp, juo Alan P. Covich. Ecology and Classification of North American Freshwater Invertebrates. 2nd ed. San Diego: Academic Press, 2001.
MLA-čujuhus (9. p.)
ebrary, Inc, et al. Ecology and Classification of North American Freshwater Invertebrates. 2nd ed. Academic Press, 2001.
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