TY  - BOOK
AU  - Porn Ingmar
TI  - Action thedory add social science:  Some formal mod   
SN  - 9027708460
U1  - Sigma b4, L7 
PY  - 1977///
CY  - Dordrecht
PB  - D Reidel Publishing Co.       
KW  - Social Science
N1  - Bibliography P 124-25
ER  -