Palmer, R. G., & Troeh, F. R. (1977). Introductory soil science laboratory manual (2nd ed.). Iowa State University Press.
Chicago Style (17th ed.) CitationPalmer, Robert G., and Frederick R. Troeh. Introductory Soil Science Laboratory Manual. 2nd ed. Ames: Iowa State University Press, 1977.
MLA (9th ed.) CitationPalmer, Robert G., and Frederick R. Troeh. Introductory Soil Science Laboratory Manual. 2nd ed. Iowa State University Press, 1977.
Warning: These citations may not always be 100% accurate.