Cita APA

Annual Meetings of Soil Science Society of America Chicago, I., American Society of Agronomy. Divisions S-4,, American Society of Agronomy. Divisions S-8, American Society of Agronomy. Divisions A-I, American Society of Agronomy. Divisions A-4, American Society of Agronomy. Soil Testing and Plant Analysis Committee (S-877), . . . Brown, J. R. (1987). Soil testing: Sampling, correlation, calibration, and interpretation. Volume 21. Madison, Wisconsin: Soil Science Society of America.

Citación estilo Chicago

Annual Meetings of Soil Science Society of America Chicago, Illinois), American Society of Agronomy. Divisions S-4, American Society of Agronomy. Divisions S-8, American Society of Agronomy. Divisions A-I, American Society of Agronomy. Divisions A-4, American Society of Agronomy. Soil Testing and Plant Analysis Committee (S-877), Soil Science Society of America, y J. R. Brown. Soil Testing: Sampling, Correlation, Calibration, and Interpretation. Volume 21. Madison, Wisconsin: Soil Science Society of America, 1987.

Cita MLA

Annual Meetings of Soil Science Society of America Chicago, Illinois), et al. Soil Testing: Sampling, Correlation, Calibration, and Interpretation. Volume 21. Madison, Wisconsin: Soil Science Society of America, 1987.