Manual of the Agromyzidae (Diptera) of the United States /
by Kenneth A. Spencer and George C. Steyskal.

APA Citation

Spencer, K. A., Steyskal, G. C., United States. Agricultural Research Service. (1986). Manual of the Agromyzidae (Diptera) of the United States. Washington, D.C.: U.S. Dept. of Agriculture, Agricultural Research Service.

MLA Citation

Spencer, Kenneth A, George C Steyskal, and United States. Agricultural Research Service. Manual of the Agromyzidae (Diptera) of the United States. Washington, D.C.: U.S. Dept. of Agriculture, Agricultural Research Service, 1986.