Cita APA (7th ed.)

Hoffman, R. L. (1975). Squah, broad-headed and scentless plant bugs of Virginia: Hemiptera: coreoidea: coreidae, alydidae, rhopalidae. Virginia Polytechnic Institute and state University.

Cita 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.

Cita 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.