APA Citation

Metcalf, Z. P. (1964). General catalogue of the homoptera. Washington D. C.: United States Department of agriculture.

Chicago Style Citation

Metcalf, Z. P. General Catalogue of the Homoptera. Washington D. C.: United States Department of agriculture, 1964.

MLA Citation

Metcalf, Z. P. General Catalogue of the Homoptera. Washington D. C.: United States Department of agriculture, 1964.

Warning: These citations may not always be 100% accurate.