TY  - BOOK
AU  - Hellevik, Ottar
TI  - Introduction to causal analysis: exploring survey data by crosstabulation
SN  - 0-04-312020-2
U1  - 300.72 21st
PY  - 1984///
CY  - London
PB  - George Allen and Unwin
KW  - Social sciences-Research-Addresses, essays, lectures; Social surveys-Addresses, essays, lectures; Social problems
ER  -