Trahan, Mary. <br/><br/>
Focus on psychology  a guide to mastering Peter Gray's Psychology /  [[Book] :] 
 Gray study guide. 
Mary Trahan. 
 - 2nd. ed. 
 - New York :  Worth Publishers,  1999. 
 - 297p. ;  28cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/> All age. 
<br/><br/><label>ISBN: </label>0879016957 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology--Problems, exercises, etc.
<br/><br/><label>LC Class. No.: </label>BF121  / .G667 1999 
<br/><br/><label>Dewey Class. No.: </label>150