Dyfyniad APA

Pickard, G. L., & Emery, W. J. (1990). Descriptive physical oceanography (5th ed.). Pergamon Press.

Dyfyniad Arddull Chicago

Pickard, George L., and William J. Emery. Descriptive Physical Oceanography. 5th ed. Oxford: Pergamon Press, 1990.

Dyfyniad MLA

Pickard, George L., and William J. Emery. Descriptive Physical Oceanography. 5th ed. Pergamon Press, 1990.

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