Dyfyniad APA

Tebbutt, T. H. Y. (1998). Principles of water quality control/5th ed (5th ed.). Butterworth Heinemann.

Dyfyniad Arddull Chicago

Tebbutt, T H Y. Principles of Water Quality Control/5th Ed. 5th ed. Oxford: Butterworth Heinemann, 1998.

Dyfyniad MLA

Tebbutt, T H Y. Principles of Water Quality Control/5th Ed. 5th ed. Butterworth Heinemann, 1998.

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