TY  - BOOK
AU  - Waerden B L van der
AU  - Nieverelt E
TI  - Tables for comparing two samples by x-test and sign test
U1  - 000SA.08 
PY  - 1956///
CY  - Gottingen
PB  - Springer
KW  - Sampling
KW  - Sign-test
KW  - X-text
ER  -