Barney, G. C. Elevator traffic handbook : theory and practice / Gina Barney and Lutfi Al-Sharif - 2nd ed. - New York : Routledge, 2016 - xxxv, 440 p. : ill. ; 25 cm. Includes bibliographical references and index ISBN: 9781138852327 (hbk.) Subjects--Topical Terms: Elevators