TY  - BOOK
AU  - Xu, Wei
TI  - Drawing in the digital age : : an observational method for artists and animators 
SN  - 9781118176504
U1  - 741.2 
PY  - 2012///
CY  - Hoboken
PB  - John Wiley
KW  - Drawing
KW  - Mathematical models
KW  - Technique
ER  -