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Dyfyniad Arddull ChicagoMERRIAM, WEBSTER'S PUB. MERRIAM WEBSTER'S GEOGRTAPHICAL DICTIONARY. 3rd ed. USA: MERRIAM, WEBSTER'S PUB, 2001.
Dyfyniad MLAMERRIAM, WEBSTER'S PUB. MERRIAM WEBSTER'S GEOGRTAPHICAL DICTIONARY. 3rd ed. MERRIAM, WEBSTER'S PUB, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.