TY  - BOOK
AU  - Arretx G
AU  - Carmen
AU  - Somoza J L
TI  - Survey methods, based on periodically repeated interviews, aimed at determining demographic rates
U1  - 000SB:312 
PY  - 1973///
CY  - Chapel hill
PB  - North carolina univ
KW  - Dmographic rates
KW  - Survey methods
ER  -