Dyfyniad APA

(1981). Year book of labour statistics 1981. Japan: Statistics andInformation Department, Minister's Secretariat, Ministry of Labour.

Dyfyniad Arddull Chicago

Year Book of Labour Statistics 1981. Japan: Statistics andInformation Department, Minister's Secretariat, Ministry of Labour, 1981.

Dyfyniad MLA

Year Book of Labour Statistics 1981. Japan: Statistics andInformation Department, Minister's Secretariat, Ministry of Labour, 1981.

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