Gaya APA

Shock, P, J., Stefanelli, J, M. (1992). Hotel Catering : A Handbook For Sales And Operations . United States of America: John Wiley Sons,Inc.

Gaya MLA

Shock, Patti, J.., Stefanelli, John, M.. "Hotel Catering : A Handbook For Sales And Operations". United States of America: John Wiley Sons,Inc, 1992. Text.