TY  - BOOK
AU  - Ranucci, Ernest R.
CN  - QA447
CN  - QA447
CY  - Palo Alto :
DA  - 1977.
ID  - 10772
KW  - Geometrical drawing.
PB  - Creative Publications,
PP  - Palo Alto :
PY  - 1977.
SN  - 0884880877
T1  - Creating Escher-type drawings /
TI  - Creating Escher-type drawings /
ER  -