TY  - GEN
AU  - Wallis,Peter J.L.
TI  - Portable programming
SN  - 0470273313 (pbk.)
U1  - 001.642,WAL 
PY  - 1982///
CY  - New York
PB  - Wiley
KW  - Software compatibility
N1  - Background to Portable Programming (Page-11), Portable Programming Techniques (Page-45)
ER  -