Dyfyniad APA

American Public Health Association. (1965). Standard methods for the examination of water and wastewater: Including bottom sediments and sludges (12a. ed.). American Public Health Association.

Dyfyniad Arddull Chicago

American Public Health Association. Standard Methods for the Examination of Water and Wastewater: Including Bottom Sediments and Sludges. 12a. ed. Nueva York: American Public Health Association, 1965.

Dyfyniad MLA

American Public Health Association. Standard Methods for the Examination of Water and Wastewater: Including Bottom Sediments and Sludges. 12a. ed. American Public Health Association, 1965.

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