Dyfyniad APA
ebrary, Inc. (1996). Use of reclaimed water and sludge in food crop production. National Academy Press.
Dyfyniad Arddull Chicago
ebrary, Inc. Use of Reclaimed Water and Sludge in Food Crop Production. Washington, D.C.: National Academy Press, 1996.
Dyfyniad MLA
ebrary, Inc. Use of Reclaimed Water and Sludge in Food Crop Production. National Academy Press, 1996.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.