Dyfyniad APA

National labour institute bulletin, Vol.5, No.7-8, 1979. National labour institute.

Dyfyniad Arddull Chicago

National Labour Institute Bulletin, Vol.5, No.7-8, 1979. New Delhi: National labour institute.

Dyfyniad MLA

National Labour Institute Bulletin, Vol.5, No.7-8, 1979. National labour institute.

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