National Society of Sales Training Executives Staff

Spanish

• 
  Capacitacion y Desarrollo Del Equipo De Ventas
  by National Society of Sales Training Executives Staff, Raymond A. Higgins
  Softcover, Addison-Wesley Iberoamericana S. A., ISBN 020162186X (0-201-62186-X)

English

• 
  The Sales Manager's Guide to Training and Developing Your Team
  by National Society of Sales Training Executives Staff, Raymond A. Higgens
  Hardcover, McGraw-Hill School Education Group, ISBN 1556236522 (1-55623-652-2)