Cita APA (7a ed.)

Ismail, A. (1999). Hotel sales & operations. Delmar Pub.

Cita Chicago Style (17a ed.)

Ismail, Ahmed. Hotel Sales & Operations. Albany: Delmar Pub, 1999.

Cita MLA (9a ed.)

Ismail, Ahmed. Hotel Sales & Operations. Delmar Pub, 1999.