Gretz, Karl F. The effective manager : being the best in financial salesmanagement / Karl F. Gretz and Steven R. Drozdeck. - New York : New York Institute of Finance, 1991 - xxxi, 406 p. ; 24 cm. Includes index. ISBN: 013173881X : 807 บาท Subjects--Topical Terms: Financial services industry--ManagementBrokersSales management Dewey Class. No.: 332.1068 / G834E 1991