Brabb , G. J., & Gerald W. McKean. (1982). Instructor's Manual: Business Data Processing. Houghton Mifflin Company.
Cita Chicago (17th ed.)Brabb , George J., i Gerald W. McKean. Instructor's Manual: Business Data Processing. USA: Houghton Mifflin Company, 1982.
Cita MLA (9th ed.)Brabb , George J., i Gerald W. McKean. Instructor's Manual: Business Data Processing. Houghton Mifflin Company, 1982.
Atenció: Aquestes cites poden no estar 100% correctes.