Fletcher , C. (1998). Appraisal: Routes to improved performance. Jaico.
Dyfyniad Arddull ChicagoFletcher , Clive. Appraisal: Routes to Improved Performance. Mumbai: Jaico, 1998.
Dyfyniad MLAFletcher , Clive. Appraisal: Routes to Improved Performance. Jaico, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.