Dyfyniad APA

Gale Research Company & Irvin, L. (1993). Encyclopedia of associations (27th ed.). Gale Research.

Dyfyniad Arddull Chicago

Gale Research Company and Linda Irvin. Encyclopedia of Associations. 27th ed. Detroit, Mich: Gale Research, 1993.

Dyfyniad MLA

Gale Research Company and Linda Irvin. Encyclopedia of Associations. 27th ed. Gale Research, 1993.

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