American Hotel & Motel Association Educational Institute. (1990). PC applications for the hospitality industry: Tutorials for Lotus 1-2-3, dBase III, WordPerfect. Educational Institute, AHMA.
Chicago-Zitierstil (17. Ausg.)American Hotel & Motel Association Educational Institute. PC Applications for the Hospitality Industry: Tutorials for Lotus 1-2-3, DBase III, WordPerfect. East Lansing, Mich: Educational Institute, AHMA, 1990.
MLA-Zitierstil (9. Ausg.)American Hotel & Motel Association Educational Institute. PC Applications for the Hospitality Industry: Tutorials for Lotus 1-2-3, DBase III, WordPerfect. Educational Institute, AHMA, 1990.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.