Dyfyniad APA

Mays, L. W. (2012). Ground and surface water hydrology. John Wiley and sons.

Dyfyniad Arddull Chicago

Mays, Larry W. Ground and Surface Water Hydrology. New Jersey: John Wiley and sons, 2012.

Dyfyniad MLA

Mays, Larry W. Ground and Surface Water Hydrology. John Wiley and sons, 2012.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.