Gaya APA
Whelan, B, M. (1994).
Color Harmony 2: A Guide to Creative Color Combinations (1).
United States of America:
Rockport.
Gaya MLA
Whelan, Bride, M..
"Color Harmony 2: A Guide to Creative Color Combinations".
1
United States of America:
Rockport,
1994.
Desain Grafis.