TY  - BOOK
AU  - Keet, Ernest E..
TI  - Preventing Piracy: A Business Guide to Software Protection / 
SN  - 0-201-15047-6
U1  - Bv 
PY  - 1989///
CY  - Massachusetts : 
PB  - Addison-Wesley Publishing Company , 
KW  - Computer Science
ER  -