Cita APA

Annual meetings Chicago, I., Divisions S-4, S., Soil Science Society of America., Usherwood, N. R., & Doll, E. C. (1975). Proceedings. Wisconsin, Estados Unidos: American Society of Agronomy ; Soil Science Society of America, Inc..

Citación estilo Chicago

Annual meetings Chicago, Illinois, S-8 Divisions S-4, Soil Science Society of America, Noble R. Usherwood, y Eugene C. Doll. Proceedings. Wisconsin, Estados Unidos: American Society of Agronomy ; Soil Science Society of America, Inc., 1975.

Cita MLA

Annual meetings Chicago, Illinois, et al. Proceedings. Wisconsin, Estados Unidos: American Society of Agronomy ; Soil Science Society of America, Inc., 1975.