Dyfyniad APA

(1976). Working environment: Sixth item on the agenda. Geneva: International Labour Office.

Dyfyniad Arddull Chicago

Working Environment: Sixth Item On the Agenda. Geneva: International Labour Office, 1976.

Dyfyniad MLA

Working Environment: Sixth Item On the Agenda. Geneva: International Labour Office, 1976.

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