Seifert, Kelvin. <br/><br/>
Lifespan development / 
Kelvin L. Seifert, Robert J. Hoffnung, Michele Hoffnung. 
 - Boston :  Houghton Mifflin Co.,  c1997. 
 - 1 v. (various pagings) : 
<br/><br/><label>ISBN: </label>0395691788 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Developmental psychology.