Whitlatch, Jo Bell. <br/><br/>
Evaluating Reference Services :  a practical guide / 
Jo Bell Whitlatch. 
 - Chicago :  American Library Association;  c2000. 
 - vi, 226 p. ;  23 cm. 
<br/><br/> Includes : Index 
<br/><br/><label>ISBN: </label>0838907873 (alk. paper) 9780838907870 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Reference services (Libraries)--Evaluation.
<br/><br/><label>Dewey Class. No.: </label>025.52  / WHI