Cita APA (7a ed.)

Nelson, L. B. (1968). Changing patterns in fertilizer use: Proceeding of a symposium sponsored by the Soil Science Society of América and help at the Palmer House in Chicago, Illinois, February 14-15. Soil Science Society of América.

Cita Chicago Style (17a ed.)

Nelson, L. B. Changing Patterns in Fertilizer Use: Proceeding of a Symposium Sponsored by the Soil Science Society of América and Help at the Palmer House in Chicago, Illinois, February 14-15. Madison, Wisconsin: Soil Science Society of América, 1968.

Cita MLA (8a ed.)

Nelson, L. B. Changing Patterns in Fertilizer Use: Proceeding of a Symposium Sponsored by the Soil Science Society of América and Help at the Palmer House in Chicago, Illinois, February 14-15. Soil Science Society of América, 1968.