Butt, B. A., & Keller, J. C. (1964). Materials evaluated as insecticides and acaricides at Brownsville, Tex: September 1955 to June 1961. U.S. Dep. 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, DC: U.S. Dep. 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. U.S. Dep. of Agriculture, 1964.
Warning: These citations may not always be 100% accurate.