Evaluating information : A guide for users of social science research 
Katzer, Jeffrey. 
 -  McGraw-Hill  Inc.  1991 
 - 272 pages. 
0-07-033588-5
Social sciences -- Methology.
300.72 K378e 1991
                        0-07-033588-5
Social sciences -- Methology.
300.72 K378e 1991