TY  - BOOK
AU  - Travers, Robert Morris William,
TI  - An introduction to educational research
U1  - 370.78 TRA 
PY  - 1968///, c1969
CY  - New York
PB  - Macmillan
KW  - Education
KW  - Research
N1  - Includes bibliographical references (p. 427-436)
ER  -