Legrand, Willy Sustainability in the hospitality industry: Principles of sustainable operations - 3rd ed. - Oxon Routledge 2017 - xxiii, 524 p. 3415 23/01/2019 RBP19/73864 11/02/2019 IHTM (SFS) ISBN: GBP45.99 Dewey Class. No.: 647.94 S52S(3)