Ismail, A. (1999). Hotel sales & operations. Delmar Pub.
Chicago Style (17th ed.) CitationIsmail, Ahmed. Hotel Sales & Operations. Albany: Delmar Pub, 1999.
MLA (9th ed.) CitationIsmail, Ahmed. Hotel Sales & Operations. Delmar Pub, 1999.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.