Masters, G. M. (1998). Introduction to environmental engineering and science (2nd ed.). Upper Saddle River NJ: Prentice Hall.
Dyfyniad Arddull ChicagoMasters, Gilbeert M. Introduction to Environmental Engineering and Science. 2nd ed. Upper Saddle River NJ: Prentice Hall, 1998.
Dyfyniad MLAMasters, Gilbeert M. Introduction to Environmental Engineering and Science. 2nd ed. Upper Saddle River NJ: Prentice Hall, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.