Alexander, M. (1977). Introduction to soil microbiology (2nd edition.). Wiley.
Cita Chicago Style (17a ed.)Alexander, Martín. Introduction to Soil Microbiology. 2nd edition. New York: Wiley, 1977.
Cita MLA (8a ed.)Alexander, Martín. Introduction to Soil Microbiology. 2nd edition. Wiley, 1977.
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