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 citiranjePalmer, Robert G., and Frederick R. Troeh. Introductory Soil Science Laboratory Manual. 2nd ed. Iowa State University Press, 1977.
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