Ditan, Joseph Linford A. Principles of bar service operations / - Mandaluyong City, Phils. : National Book Store, c2007. - x, 159 p. : b & w ill. ; 25 cm. ISBN: 9710867148 Subjects--Topical Terms: 1. Bartending2. Bar management. Dewey Class. No.: Fil. 647.95 D615p 2007