Shepard, Roger N. <br/><br/>
Mental images and their transformations/ 
Roger N. Shepard  
 - London :  MIT press,   1982. 
 - viii,353 p. : 
<br/><br/> Includes index  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Imagery, Psychology ,thought and thinking
<br/><br/><label>LC Class. No.: </label>BF367 .S55 1982