Cita APA (7a ed.)

Phillips, R. E., & Phillips, S. H. (1984). No-tillage agriculture: Principles and practices. Van Nostrand-Reinhold.

Cita Chicago Style (17a ed.)

Phillips, Ronald E., y Shirley H. Phillips. No-tillage Agriculture: Principles and Practices. New York: Van Nostrand-Reinhold, 1984.

Cita MLA (8a ed.)

Phillips, Ronald E., y Shirley H. Phillips. No-tillage Agriculture: Principles and Practices. Van Nostrand-Reinhold, 1984.