TY  - BOOK
AU  - Macewen Glenn H
TI  - Introduction to computer systems
T2  - McGraw Hill Computer Science Series
U1  - D65,8(B)92P, M0-;2 
PY  - 1980///
CY  - Auckland
PB  - McGraw Hill        
KW  -  Pascal
KW  - Computer science
ER  -