Dyfyniad APA

Colquhoun, W. (1971). Biological Rhythms and Human Performance. Academic Press.

Dyfyniad Arddull Chicago

Colquhoun, W.P. Biological Rhythms and Human Performance. London: Academic Press, 1971.

Dyfyniad MLA

Colquhoun, W.P. Biological Rhythms and Human Performance. Academic Press, 1971.

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