Dyfyniad APA

National Productivity Corporation & Perbadanan Produktiviti Negara. (1997). Productivity primer. National Productivity Corporation.

Dyfyniad Arddull Chicago

National Productivity Corporation and Perbadanan Produktiviti Negara. Productivity Primer. Petaling Jaya: National Productivity Corporation, 1997.

Dyfyniad MLA

National Productivity Corporation and Perbadanan Produktiviti Negara. Productivity Primer. National Productivity Corporation, 1997.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.