Busha, Charles H. <br/><br/>
Research methods in librarianship ; techniques and interpretation 

 - New York :  Academic Press,  1980 
 - 417 p. 
<br/><br/><label>LCCN: </label>26222 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biblioteconomía--Investigación.
<br/><br/><label>Dewey Class. No.: </label>020  / B88