Gale Research Company & Irvin, L. (1993). Encyclopedia of associations (27th ed.). Gale Research.
Cita Chicago (17th ed.)Gale Research Company i Linda Irvin. Encyclopedia of Associations. 27th ed. Detroit, Mich: Gale Research, 1993.
Cita MLA (9th ed.)Gale Research Company i Linda Irvin. Encyclopedia of Associations. 27th ed. Gale Research, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.