American Society of Agronomy, Stelly, M., & Kral, D. M. (1977). Soil testing: Correlating and interpreting the analytical results. American Society of Agronomy.
Chicago Style (17th ed.) CitationAmerican Society of Agronomy, Matthias Stelly, and David M. Kral. Soil Testing: Correlating and Interpreting the Analytical Results. Madison, Wis.: American Society of Agronomy, 1977.
MLA (9th ed.) CitationAmerican Society of Agronomy, et al. Soil Testing: Correlating and Interpreting the Analytical Results. American Society of Agronomy, 1977.
Warning: These citations may not always be 100% accurate.