Zweig, G., & Sherma, J. (1972). Analytical methods for pesticides and plant growth regulators, Volume 6, Gas chromatographic analysis. Academic Press.
Chicago Style (17th ed.) CitationZweig, Gunter, and Joseph Sherma. Analytical Methods for Pesticides and Plant Growth Regulators, Volume 6, Gas Chromatographic Analysis. New York, New York London, England: Academic Press, 1972.
MLA (9th ed.) CitationZweig, Gunter, and Joseph Sherma. Analytical Methods for Pesticides and Plant Growth Regulators, Volume 6, Gas Chromatographic Analysis. Academic Press, 1972.
Warning: These citations may not always be 100% accurate.