Russell, Frederick Arthur 1886-1973 Ventas : manual práctico / Frederick A. Russell, Frank H. Beach, Richard H. Buskirk ; tr. Sarui Jaled de Allub - México : McGraw-Hill, 1984 - 552 p. ; 23 cm. ISBN: 9684515499 Subjects--Topical Terms: Ventas LC Class. No.: HF 5438.25 / R88