Dyfyniad APA
ebrary, Inc, & Kay, B. H. (1999). Water resources: Health, environment and development. E & FN Spon.
Dyfyniad Arddull Chicago
ebrary, Inc, and Brian H. Kay. Water Resources: Health, Environment and Development. London: E & FN Spon, 1999.
Dyfyniad MLA
ebrary, Inc, and Brian H. Kay. Water Resources: Health, Environment and Development. E & FN Spon, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.