Dyfyniad APA

National Productivity council. (1963). Industrial maintenance in W.Germany, Britain and USA. Natioanl productivity council.

Dyfyniad Arddull Chicago

National Productivity council. Industrial Maintenance in W.Germany, Britain and USA. New Delhi: Natioanl productivity council, 1963.

Dyfyniad MLA

National Productivity council. Industrial Maintenance in W.Germany, Britain and USA. Natioanl productivity council, 1963.

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