APA (7th ed.) Citation

(1999). Color harmony workbook: A workbook and guide to creative color combinations. Rockport.

Chicago Style (17th ed.) Citation

Color Harmony Workbook: A Workbook and Guide to Creative Color Combinations. Gloucester, Mass: Rockport, 1999.

MLA (9th ed.) Citation

Color Harmony Workbook: A Workbook and Guide to Creative Color Combinations. Rockport, 1999.

Warning: These citations may not always be 100% accurate.