Dyfyniad APA

Stern , A. C.. (1968). Air polution (2nd ed.). Academic press.

Dyfyniad Arddull Chicago

Stern , Arthur C. Air Polution. 2nd ed. New York: Academic press, 1968.

Dyfyniad MLA

Stern , Arthur C. Air Polution. 2nd ed. Academic press, 1968.

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