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MLA

Poole, Robert W, et al. "A Taxonomic Revision of the New World Moth Genus Pero (lepidoptera--geometridae)." , 257. Print

APA

Poole, R. W, United States, U. States, Agricultural Research Service, A. Research Service, & Allied Chemical Foundation, A. Chemical Foundation. (1987). A taxonomic revision of the New World moth genus Pero (Lepidoptera--Geometridae).

Chicago

Poole, Robert W., United States, Agricultural Research Service, and Allied Chemical Foundation. "A taxonomic revision of the New World moth genus Pero (Lepidoptera--Geometridae)" (0000): 257.