International Labour Organisation. (1983). Economics: Workers education manual. Oxford & IBH.
Dyfyniad Arddull ChicagoInternational Labour Organisation. Economics: Workers Education Manual. New Delhi: Oxford & IBH, 1983.
Dyfyniad MLAInternational Labour Organisation. Economics: Workers Education Manual. Oxford & IBH, 1983.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.