TY  - BOOK
AU  - Harper Harriet
TI  - Information technology: a practical course 
SN  - 0333460863 
AV  - Z699 
U1  - 001.5 
PY  - 1988///
CY  - Basingstoke
PB  - Macmillan Education
KW  - Information storage and retrieval systems
N1  - Student's book -- Tutor's book
ER  -