TY  - BOOK
AU  - UNITED NATIONS.
ED  - UNITED NATIONS.
TI  - Biostatistics :  Report of inter American centre, Santiago , chile from 21 Aug 1952 to 31 Dec1955.   
T2  - Statistical papers series M.25
U1  - G:(B28).73.N55<---N52r, J7 
PY  - 1957///
CY  - New York
PB  - Statistical office        
ER  -