Ryan, D. A. (1989). Business aspects of catering. Longman Scientific & Technical.
Chicago Style (17th ed.) CitationRyan, Douglas A. Business Aspects of Catering. Harlow, Essex: Longman Scientific & Technical, 1989.
MLA (9th ed.) CitationRyan, Douglas A. Business Aspects of Catering. Longman Scientific & Technical, 1989.
Warning: These citations may not always be 100% accurate.