TY  - BOOK
AU  - Gvishiani J M ed
TI  - Systems research :  Methodological problems
T2  - Advances in systems research series; VI
U1  - 2:89M, M4 (2D) 
PY  - 1984///
CY  - Oxford
PB  - Pergamon Press      
KW  - LIBRARY SCIENCE
ER  -