Cita APA (7a ed.)

Crop Science Society of America, Soil Science Society of America, American Society of Agronomy, Follett, R., & Stewart, B. A. (1985). SOIL erosion and crop productivity. ASA.

Cita Chicago Style (17a ed.)

Crop Science Society of America, Soil Science Society of America, American Society of Agronomy, R.F Follett, y Bobby Alton Stewart. SOIL Erosion and Crop Productivity. Madison: ASA, 1985.

Cita MLA (8a ed.)

Crop Science Society of America, et al. SOIL Erosion and Crop Productivity. ASA, 1985.