TY  - BOOK
AU  - Yule, Udny
AU  - Kendall, M.G. 
TI  - An introduction to the theory of statistics
U1  - 519.5   
PY  - 1950///
CY  - London
PB  - Charles Griffin & Co. Ltd
KW  - Theory of attributes
KW  - Sampling
KW  - Correlation
ER  -