Faithfull, N. T. (2002). Methods in agricultural chemical analysis: A practical handbook. Cabi Pub..
Lua i Stíl Chicago (17ú heag.)Faithfull, N. T. Methods in Agricultural Chemical Analysis: A Practical Handbook. Oxon, UK ; New York: Cabi Pub., 2002.
Lua MLA (9ú heag.)Faithfull, N. T. Methods in Agricultural Chemical Analysis: A Practical Handbook. Cabi Pub., 2002.
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