TY  - BOOK
AU  - Cook,David R.
AU  - LaFleur,N.Kenneth
TI  - A guide to educational research
SN  - 0205647475
U1  - 370.78 
PY  - 1975///
CY  - Boston
PB  - Allyn and Bacon.
KW  - EDUCACION - INVESTIGACION
N1  - Indice
ER  -