Dyfyniad APA

Natusch, D. F., & Hopke, P. K. (1983). Analytical aspects of environmental chemistry. John Wiley.

Dyfyniad Arddull Chicago

Natusch, David F., and Philip K. Hopke. Analytical Aspects of Environmental Chemistry. Nueva York: John Wiley, 1983.

Dyfyniad MLA

Natusch, David F., and Philip K. Hopke. Analytical Aspects of Environmental Chemistry. John Wiley, 1983.

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