TY  - BOOK
AU  - Simpson A.
TI  - Understanding D Base IV
SN  - 0000016295
U1  - 001.642466Dbase 6 
PY  - 1976///
CY  - New Delhi
PB  - B.P.B. Publications
KW  - Base  D  IV  Understanding
KW  - D Base Languages III, IV etc
ER  -