Thien, S. J., & Graveel, J. G. (2003). Laboratory manual for soil science: Agricultural & enviromental principles (Eighth edition.). New York: McGraw-Hill.
Stile di citazione ChicagoThien, Stephen J., e John G. Graveel. Laboratory Manual for Soil Science: Agricultural & Enviromental Principles. Eighth edition. New York: McGraw-Hill, 2003.
Citazione MLAThien, Stephen J., e John G. Graveel. Laboratory Manual for Soil Science: Agricultural & Enviromental Principles. Eighth edition. New York: McGraw-Hill, 2003.
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