Davidson, Jeffrey P. <br/><br/>
Asertividad 
Jeff Davidson ; traducción de José Francisco Javier Dávila Martínez. 
 - México  Pearson Education  1999. 
 - xxiv, 340 p.  ill.  24 cm. 
 - Fácil .
<br/><br/>Includes bibliography (p.[325]-326) and index. 
<br/><br/><label>ISBN: </label>0028619641 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Assertiveness (Psychology)<br/>Assertiveness training.<br/>Interpersonal relations
<br/><br/><label>Dewey Class. No.: </label>158.2  / D2521c E