McCall, John. <br/><br/>
Statistics :  a guide for therapists / 
by John McCall. 
 - Oxford :  Butterworth-Heinemann,  1996. 
 - ix, 268 p. :  ill. ;  22 cm. 
 - Skills for practice .
 - Skills for practice series. .
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>0750621044 (pbk. ) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychotherapy--Research--Statistical methods.