TY  - BOOK
AU  - Griffiths,Samuel Robert
AU  - Downes,Leonard William
TI  - Educational statistics for beginners
SN  - 0423428705  :
U1  - 370.18 
PY  - 1969///
CY  - London, New York
PB  - Methuen Educational, Barnes & Noble
KW  - Education
KW  - Statistics
KW  - Philosophy
N1  - Includes bibliographies
ER  -