TY  - BOOK
AU  - Truitt T D
AU  - Mindlin S B
TI  - Introduction to nonprocedural languages : using NPL
SN  - 0-07-065301-1
U1  - 005.13 
PY  - 1983///
CY  - New Delhi
PB  - McGraw Hill
KW  - Nonprocedural languages
KW  - Programming language
ER  -