Dyfyniad APA

Cushing, D. H. (1975). Marine ecology and fisheries. University Press.

Dyfyniad Arddull Chicago

Cushing, D. H. Marine Ecology and Fisheries. Cambridge: University Press, 1975.

Dyfyniad MLA

Cushing, D. H. Marine Ecology and Fisheries. University Press, 1975.

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