Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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