Professional salesmanship / 
Thomas N. Ingram ... [et al.]. 
 - Quezon City:   C & E Pub.,   c2017. 
 - v, 163 p. :  ill. ;  26 cm. 
<br/><br/><label>ISBN: </label>978-971-98-0717-9 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sales personnel.