TY  - BOOK
AU  - Ullman, Jeffrey D
TI  - Fundamental concepts of programming systems
SN  - 0201076543
U1  - 001.642 ULL 
PY  - 1976///
CY  - Reading, Mass.
PB  -  : Addison-Wesley Pub. Co., 
KW  -  Computer programming.
KW  - Programming languages (Electronic computers)
KW  - Fundamental concepts of programming systems
KW  - computer science
KW  - Jeffrey D Ullman
ER  -