National Society of Professional Engineers. (1976). Tabulation of unions representing engineering and technical employees (12th ed.). National Society of Professional Engineers.
Chicago Style (17th ed.) CitationNational Society of Professional Engineers. Tabulation of Unions Representing Engineering and Technical Employees. 12th ed. Washington, D.C.: National Society of Professional Engineers, 1976.
MLA (9th ed.) CitationNational Society of Professional Engineers. Tabulation of Unions Representing Engineering and Technical Employees. 12th ed. National Society of Professional Engineers, 1976.
Warning: These citations may not always be 100% accurate.