Soil and Plant Analysis Council. (1999). Soil and plant analysis laboratory registry for the United States and Canada (Second edition.). CRC Press.
Chicago Style (17th ed.) CitationSoil and Plant Analysis Council. Soil and Plant Analysis Laboratory Registry for the United States and Canada. Second edition. Boca Raton, Fla.: CRC Press, 1999.
MLA (9th ed.) CitationSoil and Plant Analysis Council. Soil and Plant Analysis Laboratory Registry for the United States and Canada. Second edition. CRC Press, 1999.
Warning: These citations may not always be 100% accurate.