Dyfyniad APA

Elsom, D. M. (1992). Atmospheric pollution: A global problem (2nd ed.). Blackwell.

Dyfyniad Arddull Chicago

Elsom, Derek M. Atmospheric Pollution: A Global Problem. 2nd ed. Oxford: Blackwell, 1992.

Dyfyniad MLA

Elsom, Derek M. Atmospheric Pollution: A Global Problem. 2nd ed. Blackwell, 1992.

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