Dyfyniad APA

Schwoerbel, J. (1970). Methods of hydrobiology (freshwater biology). Oxford: Pergamon Press.

Dyfyniad Arddull Chicago

Schwoerbel, Jurgen. Methods of Hydrobiology (freshwater Biology). Oxford: Pergamon Press, 1970.

Dyfyniad MLA

Schwoerbel, Jurgen. Methods of Hydrobiology (freshwater Biology). Oxford: Pergamon Press, 1970.

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