Brown, J. W., & Razowski, J. (2003). Description of Ptychocroca, a new genus from Chile and Argentina, with comments on the Bonagota Razowski group of genera (Lepidoptera: Tortricidae:Euliini). Magnolia Press.
Chicago Style (17th ed.) CitationBrown, John W., and Józef Razowski. Description of Ptychocroca, a New Genus from Chile and Argentina, with Comments on the Bonagota Razowski Group of Genera (Lepidoptera: Tortricidae:Euliini). Auckland, N.Z.: Magnolia Press, 2003.
MLA (9th ed.) CitationBrown, John W., and Józef Razowski. Description of Ptychocroca, a New Genus from Chile and Argentina, with Comments on the Bonagota Razowski Group of Genera (Lepidoptera: Tortricidae:Euliini). Magnolia Press, 2003.
Warning: These citations may not always be 100% accurate.