Rigg, Robinson Peter. <br/><br/>
Sistemas y métodos audiovisuales 
autor, Robinson P. Rigg ; traducción y adaptación, José Luis de la Serna, Juan Cobos Sáinz. 
 - Bilbao  Ediciones Deusto  c1974 
 - 303 p.  ill. 
<br/><br/> Translation of: Audiovisisual aids and techniques in managerial and supervisory training. 
<br/><br/>Bibliography: p. [301]-303. 
<br/><br/><label>ISBN: </label>8423402819 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Audiovisual materials.<br/>Executives, Training--Audio-visual aids.