TY  - BOOK
AU  - Van Dalen,Deobold B.
TI  - Understanding educational research: an introduction
T2  - McGraw-Hill series in education: psychology and human development in education
AV  - LB1028 .V3 1966
U1  - 370.78 
PY  - 1966///]
CY  - New York
PB  - McGraw-Hill
KW  - Education
KW  - Research
KW  - Local
N1  - Includes index; Bibliography: p. 501-509
ER  -