Williamson, T. G., & Witczak, M. W. (1966). Laboratory and field evaluation of the nuclear moisture and density meters. Purdue University.
Chicago Style (17th ed.) CitationWilliamson, T. G., and Matthew W. Witczak. Laboratory and Field Evaluation of the Nuclear Moisture and Density Meters. Lafayette: Purdue University, 1966.
MLA (9th ed.) CitationWilliamson, T. G., and Matthew W. Witczak. Laboratory and Field Evaluation of the Nuclear Moisture and Density Meters. Purdue University, 1966.
Warning: These citations may not always be 100% accurate.