TY  - BOOK
AU  - Gray, Peter M D
TI  - Logic, algebra and database
SN  - 9780470202593
U1  - 512.9 GRA-L 22
PY  - 1988///
CY  - 
PB  - Affiliated East-West Press Pvt. Ltd., New Delhi
KW  - Pedagogical algebra; Mathematics
ER  -