Cita APA

Annual meetings Stillwater, O., American Society of Agronomy., Crop Science Society of America., Soil Science Society of America., Younts, S., & Rohweder, D. (1967). Symposium. Estados Unidos de América: American Society of Agronomy.

Citación estilo Chicago

Annual meetings Stillwater, Oklahoma, American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, S.E. Younts, y D.A. Rohweder. Symposium. Estados Unidos de América: American Society of Agronomy, 1967.

Cita MLA

Annual meetings Stillwater, Oklahoma, et al. Symposium. Estados Unidos de América: American Society of Agronomy, 1967.