Cofnodi Dyfyniadau
Dyfyniad APA
Thurber, W. A. (1968). Exploring earth science. Allyn and Bacon.
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Dyfyniad Arddull Chicago
Thurber, Walter A. Exploring Earth Science. Boston: Allyn and Bacon, 1968.
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Dyfyniad MLA
Thurber, Walter A. Exploring Earth Science. Allyn and Bacon, 1968.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.