TY  - BOOK
AU  - Nilsson Nils J
TI  - Problem-solving methods in artifical intelligenoe
T2  - Mcgraw Hill computer science series
U1  - D65,8(B)92, L1;3 
PY  - 1971///
CY  - New York    
PB  -  McGraw Hill       
KW  - Cpmputer science
ER  -