Description: Finding the source :

Main Author:	Shearer, Benjamin F
Other Authors:	Shearer, Barbara Smith
Format:	Book
Language:	English
Published:	Westport, Conn.: Greenwood Press, 1981
Subjects:	Reference services (Libraries) Information retrieval Subject headings

Physical Description:	xviii, 545 p. ; 25 cm.
ISBN:	031322563X