Dyfyniad APA

Leppard, G. G. (1983). Trace element speciation in surface waters and its ecological implications. Plenum.

Dyfyniad Arddull Chicago

Leppard, Gray G. Trace Element Speciation in Surface Waters and Its Ecological Implications. New York: Plenum, 1983.

Dyfyniad MLA

Leppard, Gray G. Trace Element Speciation in Surface Waters and Its Ecological Implications. Plenum, 1983.

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