Cita APA (7a ed.)

Hayes, W. A., & Young, H. M. (1982). Minimum tillage farming. No-Till Farmer.

Cita Chicago Style (17a ed.)

Hayes, William A., y H. M. Young. Minimum Tillage Farming. Wisconsin: No-Till Farmer, 1982.

Cita MLA (8a ed.)

Hayes, William A., y H. M. Young. Minimum Tillage Farming. No-Till Farmer, 1982.