Butt, B. A., & Keller, J. C. (1964). Materials evaluated as insecticides and acaricides at Brownsville, Tex., September 1955 to June 1961. Agricultural Research Service, U.S. Dept. of Agriculture.
Chicago Style (17th ed.) CitationButt, B. A., and J. C. Keller. Materials Evaluated as Insecticides and Acaricides at Brownsville, Tex., September 1955 to June 1961. Washington, D.C.: Agricultural Research Service, U.S. Dept. of Agriculture, 1964.
MLA (9th ed.) CitationButt, B. A., and J. C. Keller. Materials Evaluated as Insecticides and Acaricides at Brownsville, Tex., September 1955 to June 1961. Agricultural Research Service, U.S. Dept. of Agriculture, 1964.
Warning: These citations may not always be 100% accurate.