TY  - BOOK
AU  - Davis,James A.
AU  - Smith,Tom W.
ED  - National Science Foundation (Estados Unidos)
TI  - General social surveys, 1972-1990: cumulative codebook : codebook for the machine-readable data file general social surveys, 1972-1990 
T2  - National data program for the social science series, issn 0161-3340
SN  - 0932132448
AV  - Z47 D49
PY  - 1990///?]
CY  - [United States]
PB  - National Science Foundation
KW  - Numero de publicacion normalizado del libro
ER  -