TY  - BOOK
AU  - Alcalá Rivero, Guillermo
TI  - Computer Sciences
SN  - 968-451-970-2
AV  - HM262 A42
PY  - 1987///
CY  - México
PB  - McGraw-Hill
KW  - Computación
N1  - Other English language teaching books for specific objectives published by McGraw-Hill
ER  -