TY  - BOOK
AU  - Borg,Walter R.
AU  - Gall,Meredith D.
TI  - Educational research : : An introduction / 
SN  - 0679300694 (hb)
PY  - 1971///
CY  - New York : 
PB  - David McKay Co., 
N1  - Includes index
ER  -