ECKSTEIN, H. W. (1991). Color in the 21st century A practical guide for graphic designers, photographers, printers, separator. Watson-Guptill Publication.
Chicago Style (17th ed.) CitationECKSTEIN, Helene W. Color in the 21st Century A Practical Guide for Graphic Designers, Photographers, Printers, Separator. Watson-Guptill Publication, 1991.
MLA (8th ed.) CitationECKSTEIN, Helene W. Color in the 21st Century A Practical Guide for Graphic Designers, Photographers, Printers, Separator. Watson-Guptill Publication, 1991.
Warning: These citations may not always be 100% accurate.