TY  - BOOK
AU  - Downie,N.M.
AU  - Heath,R.W.
TI  - Basic statistical methods
T2  - Education for living series
AV  - HA29 .D68 1965
U1  - 310 
PY  - 1965///]
CY  - New York
PB  - Harper & Row
KW  - Statistics
N1  - Bibliography: p. 267-268
ER  -