Não informado. (1969). Insects of Virginia. Virginia State University, Polytechnic Institute, Research Division.
Citace podle Chicago (17th ed.)Não informado. Insects of Virginia. Blacksburg, Va: Virginia State University, Polytechnic Institute, Research Division, 1969.
Citace podle MLA (8th ed.)Não informado. Insects of Virginia. Virginia State University, Polytechnic Institute, Research Division, 1969.
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