Cofnodi Dyfyniadau
Dyfyniad APA
Jackson, J. D. (1989). Biology encounters (3rd.ed.). Burgress International.
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Dyfyniad Arddull Chicago
Jackson, John D. Biology Encounters. 3rd.ed. Edina: Burgress International, 1989.
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Dyfyniad MLA
Jackson, John D. Biology Encounters. 3rd.ed. Burgress International, 1989.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.