Ray, William J., <br/><br/>
Methods toward a science of behavior and experience / 

 - 6th ed. 
 - Belmont  Wadsworth,  2000. 
 - xxviii, 441 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0534357210 
<br/><br/><label>LC Class. No.: </label>BF76.5  / .R11 2000