Hoffman, R. L. (1975). Squah, broad-headed and scentless plant bugs of Virginia: Hemiptera: coreoidea: coreidae, alydidae, rhopalidae. Virginia Polytechnic Institute and state University.
Citace podle Chicago (17th ed.)Hoffman, Richard L. Squah, Broad-headed and Scentless Plant Bugs of Virginia: Hemiptera: Coreoidea: Coreidae, Alydidae, Rhopalidae. Blacksburg: Virginia Polytechnic Institute and state University, 1975.
Citace podle MLA (9th ed.)Hoffman, Richard L. Squah, Broad-headed and Scentless Plant Bugs of Virginia: Hemiptera: Coreoidea: Coreidae, Alydidae, Rhopalidae. Virginia Polytechnic Institute and state University, 1975.
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