TY  - BOOK
AU  - Porter Tom
AU  -  Goodman, Sue
TI  - Manual of graphic techniques 4 
SN  - 0-684-18216-5.
AV  - NC1000.P684 
CY  - New York
KW  -  Commercial art--Technique
KW  -  Commercial art--Technique--Handbooks
KW  -  Commercial art--Themes
KW  -  Commercial art--United States--Handbooks
KW  -  Graphic arts--Study and
KW  -  manuals
KW  -  motives
KW  - Graphic arts
KW  - Graphic arts--Technique
ER  -