Dyfyniad APA

International labour office. (1979). Man in his working environment: A workers' education manual. Geneve: International labour office.

Dyfyniad Arddull Chicago

International labour office. Man in His Working Environment: A Workers' Education Manual. Geneve: International labour office, 1979.

Dyfyniad MLA

International labour office. Man in His Working Environment: A Workers' Education Manual. Geneve: International labour office, 1979.

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