APA
Whelan B. M., . (1994). Color harmony 2. Rockport Publ, Massachusetts: .
Chicago
Whelan Bride M, . 1994. Color harmony 2. Rockport Publ, Massachusetts: .
Harvard
Whelan B. M., . (1994). Color harmony 2. Rockport Publ, Massachusetts: .
MLA
Whelan Bride M, . Color harmony 2. Rockport Publ, Massachusetts: . 1994.