Mars, G., Mitchell, P., & Bryant, D. T. (1979). Manpower problems in the hotel and catering industry. Saxon House.
Cita Chicago (17th ed.)Mars, Gerald, Peter Mitchell, i Donald T. Bryant. Manpower Problems in the Hotel and Catering Industry. Farnborough, Eng: Saxon House, 1979.
Cita MLA (9th ed.)Mars, Gerald, et al. Manpower Problems in the Hotel and Catering Industry. Saxon House, 1979.
Atenció: Aquestes cites poden no estar 100% correctes.