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Dyfyniad Arddull ChicagoSVERDRUP, H.U. Oceans: Their Physics, Chemistry and General Biology. Englewood: Prentice-Hall, 1967.
Dyfyniad MLASVERDRUP, H.U. Oceans: Their Physics, Chemistry and General Biology. Prentice-Hall, 1967.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.