Gschwandtner, Gerhard Manual del gerente de ventas / Gerhard Gschwandtner - México : McGraw-Hill Interamericana, 2008 - 278 p. ISBN: 978-970-10-6301-9 970-10-6301-5 Subjects--Topical Terms: ADMINISTRACIÓN DE VENTAS--MANUALES Dewey Class. No.: 658.81 G895m