Cita APA (7a ed.)

Crop Science Society of America, Soil Science Society of America, American Society of Agronomy, Hanson, A., Barnes, D., & Hill, R. (1988). ALFALFA and alfalfa improvement. ASA.

Cita Chicago Style (17a ed.)

Crop Science Society of America, Soil Science Society of America, American Society of Agronomy, A.A Hanson, D.K Barnes, y R.R Hill. ALFALFA and Alfalfa Improvement. Madison, Wis.: ASA, 1988.

Cita MLA (8a ed.)

Crop Science Society of America, et al. ALFALFA and Alfalfa Improvement. ASA, 1988.