TY  - BOOK
AU  - D'Sousa, Stanislaus
AU  - 
TI  - Closed Birth Intervals : A Data Analysis Study
U1  - 312.1(73) 
PY  - 1974///
CY  - New Delhi
PB  - Sterling Publishers (P) Ltd.
KW  - Closed Birth Intervals: A Data Analysis Study
N1  -  reference P.128
ER  -