Gaya APA

Phillips, R, E., Phillips, S, H. (1984). No-Tillage Agriculture: Principles and Practices . New York: Van Nostrand Reinhold.

Gaya MLA

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