Dyfyniad APA

Perkins, E. J. (1974). Biology of esturies and coastal waters. Academic Press.

Dyfyniad Arddull Chicago

Perkins, E. J. Biology of Esturies and Coastal Waters. New York: Academic Press, 1974.

Dyfyniad MLA

Perkins, E. J. Biology of Esturies and Coastal Waters. Academic Press, 1974.

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