TY  - BOOK
AU  - Gotkin,Lassar G.
AU  - Goldstein,Leo S.
TI  - Descriptive statistics: a programed textbook 
U1  - 519.53077 
PY  - 1964///
CY  - New York
PB  - Wiley
KW  - Statistics
KW  - Programmed instruction
ER  -