Gaya APA

Kappa, M, M. et al (1990). Managing housekeeping operations . East Lansing, Michigan: The Educational Institute of the American Hotel & Motel Association.

Gaya MLA

Kappa, Margareth, M.. et al. "Managing housekeeping operations". East Lansing, Michigan: The Educational Institute of the American Hotel & Motel Association, 1990. BUKU.