APA (7th ed.) Citation

Symposium December 2 : Chicago, I. :. 4., Bloom, P. 4., Clapp, C. 4., MacCarthy, P. 4., Malcom, R. 4., & 40888, I. H. S. S. (1990). Humic substances in soil and crop sciences. Selected readings: Proceedings of a symposium cosponsored by the International Humic Substances Society. Madison : USA : American Society of Agronomy; Soil Science Society of America.

Chicago Style (17th ed.) Citation

Symposium December 2 : Chicago, Illinois : 40883., P.R. 40884 Bloom, C.E. 40885 Clapp, Patrick 40886 MacCarthy, R.L. 40887 Malcom, and International Humic Substances Society 40888. Humic Substances in Soil and Crop Sciences. Selected Readings: Proceedings of a Symposium Cosponsored by the International Humic Substances Society. Madison : USA : American Society of Agronomy; Soil Science Society of America, 1990.

MLA (8th ed.) Citation

Symposium December 2 : Chicago, Illinois : 40883., et al. Humic Substances in Soil and Crop Sciences. Selected Readings: Proceedings of a Symposium Cosponsored by the International Humic Substances Society. Madison : USA : American Society of Agronomy; Soil Science Society of America, 1990.

IICA/CATIE Citation

Symposium December 2 : Chicago, I. :. 4., Bloom, P. 4., Clapp, C. 4., MacCarthy, P. 4., Malcom, R. 4., ; 40888, I. H. S. S. 1990. Humic substances in soil and crop sciences. Selected readings: Proceedings of a symposium cosponsored by the International Humic Substances Society. Madison : USA : American Society of Agronomy; Soil Science Society of America.