Cita APA (7th ed.)
ebrary, Inc. (1996). A new era for irrigation. National Academy Press.
Cita Chicago (17th ed.)
ebrary, Inc. A New Era for Irrigation. Washington, D.C.: National Academy Press, 1996.
Cita MLA (9th ed.)
ebrary, Inc. A New Era for Irrigation. National Academy Press, 1996.
Atenció: Aquestes cites poden no estar 100% correctes.