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Dyfyniad Arddull ChicagoRubin, Richard. Foundations of Library and Information Science. 3rd ed. New York: Neal-Schuman Publishers, 2010.
Dyfyniad MLARubin, Richard. Foundations of Library and Information Science. 3rd ed. Neal-Schuman Publishers, 2010.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.