Cita APA

 Futrel, C. M. (2006).  ABC''s of relationship selling through service.  McGraw-Hill.

Citación estilo Chicago

 Futrel, Charles M.  ABC''s of Relationship Selling Through Service.  McGraw-Hill, 2006.

Cita MLA

 Futrel, Charles M.  ABC''s of Relationship Selling Through Service.  McGraw-Hill, 2006.