Cita APA (7th ed.)

Abbey,James. Hospitality sales & marketing (4.). The American Hotel & lodging Education Institute.

Cita Chicago (17th ed.)

Abbey,James. Hospitality Sales & Marketing. 4. Michigan: The American Hotel & lodging Education Institute.

Cita MLA (9th ed.)

Abbey,James. Hospitality Sales & Marketing. 4. The American Hotel & lodging Education Institute.

Atenció: Aquestes cites poden no estar 100% correctes.