Dyfyniad APA
ebrary, Inc. (1994). Ground water recharge using waters of impaired quality. National Academy Press.
Dyfyniad Arddull Chicago
ebrary, Inc. Ground Water Recharge Using Waters of Impaired Quality. Washington, D.C.: National Academy Press, 1994.
Dyfyniad MLA
ebrary, Inc. Ground Water Recharge Using Waters of Impaired Quality. National Academy Press, 1994.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.