Grogan, Denis Joseph. <br/><br/>
Practical reference work / 
Denis Grogan. 
 - London :  New York :  C. Bingley ;  K.G. Saur,  1979. 
 - 144 p. 
 - Outlines of modern librarianship .
<br/><br/><label>ISBN: </label>0851572758 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Reference services (Libraries)