TY  - BOOK
AU  - Morris, noel M.
TI  - Computer graphics and cad fundamentals: bbc micro version: bbc micro version 
U1  - 006.6  1
PY  - 1988///
CY  - Allahabad
PB  - A H Wheelers and Company
KW  - Graphics operations and user- defines characters
KW  - Three- dimensional shapes
KW  - Computer graphics mathematics
ER  -