TY  - BOOK
AU  - RYDER,Norman B.
TI  - The cohort approach : : essays in the measurement of temporal variations in demographic behavior / 
T2  - Dissertations on sociology
SN  - 0405129912
PY  - 1980///
CY  - New York : 
PB  - Arno Press, 
KW  - Anàlisi per cohort
KW  - lemac
KW  - popin
KW  - ANÁLISIS POR COHORTES
KW  - COHORT ANALYSIS
N1  - Originally presented as the author's thesis, Princeton, 1951; Inclou bibliografia (p. 190-206).
ER  -