Dyfyniad APA

Sawyer, C. N., Mccarty, P. L., & Parkin, G. F. (1994). Chemistry for Environmental Engineering. Singapore: McGraw-Hill.

Dyfyniad Arddull Chicago

Sawyer, Clair N., Perry L. Mccarty, và Gene F. Parkin. Chemistry for Environmental Engineering. Singapore: McGraw-Hill, 1994.

Dyfyniad MLA

Sawyer, Clair N., Perry L. Mccarty, và Gene F. Parkin. Chemistry for Environmental Engineering. Singapore: McGraw-Hill, 1994.

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