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Dyfyniad Arddull ChicagoANDERSON R J. EXTERNAL AUDIT (I) CONCEPTS AND TECHNIQUES. TORONTO: CHOPP CLARK PITMAN, 1977.
Dyfyniad MLAANDERSON R J. EXTERNAL AUDIT (I) CONCEPTS AND TECHNIQUES. CHOPP CLARK PITMAN, 1977.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.