"Lankes, R. D. " <br/><br/>
Implementing digital reference services/ 
R.D. Lankes 
 - New York:  "Neil schuman,"  2003 
 - 232p. 
<br/><br/><label>Subjects--Index Terms: </label>Library sciencedigital reference 
<br/><br/><label>Dewey Class. No.: </label>25