Jones, J. B. (2001). Labratory guide for conducting soil tests and: Plant analysis. CRC Pr..
Cita Chicago (17th ed.)Jones, J. Benton. Labratory Guide for Conducting Soil Tests and: Plant Analysis. Boca Raton: CRC Pr., 2001.
Cita MLA (9th ed.)Jones, J. Benton. Labratory Guide for Conducting Soil Tests and: Plant Analysis. CRC Pr., 2001.
Atenció: Aquestes cites poden no estar 100% correctes.