Gaya APA

Rogers, H, A., Phipps, D, K. (1977). Economics for the hotel and catering industry A basic course (1st ed.). London: Barrie & Jenkins.

Gaya MLA

Rogers, H., Anthea., Phipps, Diana, K.. "Economics for the hotel and catering industry A basic course". 1st ed. London: Barrie & Jenkins, 1977. BUKU.