TY  - BOOK
AU  - Gotkin,Lassar G.
AU  - Goldstein,Leo S.
TI  - Descriptive statistics : : a programmed textbook / 
U1  - 314 
PY  - 1964///-65]
CY  - New York : 
PB  - Wiley, 
KW  - Statistics
KW  - Programmed instruction
ER  -