TY  - BOOK
AU  - Van Dalen 
AU  - Meyer, William J.
TI  - Understanding educational research : an introduction 
U1  - 370.78 VAN 1962 
PY  - 1966///
CY  - New York
PB  - McGraw-Hill
KW  - Education
KW  - Research
N1  - Includes index p.421 - 432
ER  -