Dyfyniad APA

(1991). Biological monitoring: Signals from the environment. Braunschweig: Vieweg.

Dyfyniad Arddull Chicago

Biological Monitoring: Signals From the Environment. Braunschweig: Vieweg, 1991.

Dyfyniad MLA

Biological Monitoring: Signals From the Environment. Braunschweig: Vieweg, 1991.

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