Cita APA (7th ed.)

Henkin, S., & Duffy, M. (2001). Opportunities in hotel and motel management careers. VGM Career Books.

Cita Chicago (17th ed.)

Henkin, Shepard, i Marguerite Duffy. Opportunities in Hotel and Motel Management Careers. Lincolnwood, Ill: VGM Career Books, 2001.

Cita MLA (9th ed.)

Henkin, Shepard, i Marguerite Duffy. Opportunities in Hotel and Motel Management Careers. VGM Career Books, 2001.