TY  - BOOK
AU  - Siegel, Sydnes.
TI  - Non parametric statistics for the behavioural science
U1  - 311.1 J6 
PY  - 1956///
CY  - Tokyo
PB  - Mc Graw-Hill Kogakusha
KW  - Sydnes Siegel
KW  - Statistics
ER  -