Cita APA

Soil Science Society of America. Division S-5., Soil Science Society of America. Division S-9., Bigham, J. M., Ciolkosz, E. J., & Luxmoore, R. J. (1993). Soil color: Proceedings of a symposium sponsored by Divisions S-5 and S-9 of the Soil Science Society of America in San Antonio, Texas, 21-26 Oct. 1990. Soils Science Society of America.

Citación estilo Chicago

Soil Science Society of America. Division S-5., Soil Science Society of America. Division S-9, J. M. Bigham, E. J. Ciolkosz, and R. J. Luxmoore. Soil Color: Proceedings of a Symposium Sponsored By Divisions S-5 and S-9 of the Soil Science Society of America in San Antonio, Texas, 21-26 Oct. 1990. Madison, Wis, USA: Soils Science Society of America, 1993.

Cita MLA

Soil Science Society of America. Division S-5., et al. Soil Color: Proceedings of a Symposium Sponsored By Divisions S-5 and S-9 of the Soil Science Society of America in San Antonio, Texas, 21-26 Oct. 1990. Madison, Wis, USA: Soils Science Society of America, 1993.