Gaya APA
Jack, K., D., B., R. (1990).
Sprinkle and trickle irrigation / Jack Keller, Ron D. Bliesmer .
New York:
Van Nostrand Reinhold.
Gaya MLA
Keller, Jack., Bleisner, Ron, D..
"Sprinkle and trickle irrigation / Jack Keller, Ron D. Bliesmer".
New York:
Van Nostrand Reinhold,
1990.
Textbook.