Apel, J. R. (1987). Principles of ocean physics. Academic Press.
Dyfyniad Arddull ChicagoApel, John. R. Principles of Ocean Physics. London: Academic Press, 1987.
Dyfyniad MLAApel, John. R. Principles of Ocean Physics. Academic Press, 1987.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.