TY  - BOOK
AU  - Mason Emanuel J
AU  -  Bramble William J
TI  - Understanding and conducting  :  Applications in education and the behavioral sciences
SN  - 0070406979
U1  - Sigma:f, L81 
PY  - 1978///
CY  - New York
PB  - Mcgraw Hill USA     
KW  -  SOCIAL SCIENCES
KW  - RESEARCH METHODS
ER  -