Mastery motivation in early childhood :  development, measurement and social processes / 
edited by David Messer. 
 - London :  Routledge,  1993. 
 - 258 p. ;  24 cm. 
<br/><br/><label>ISBN: </label>0415069564  RM197.63 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Achievement motivation in children.<br/>Achievement motivation in children--Testing.<br/>Achievement motivation in children--Social aspects.