Dyfyniad APA

International Federation of Building and Wood Workers (IFBWW). (1995). IFBWW at work. Geneva: IFBWW.

Dyfyniad Arddull Chicago

International Federation of Building and Wood Workers (IFBWW). IFBWW at Work. Geneva: IFBWW, 1995.

Dyfyniad MLA

International Federation of Building and Wood Workers (IFBWW). IFBWW at Work. Geneva: IFBWW, 1995.

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