MLA

Emery, Richard. Creative Duotone Effects : a Guide to Choosing Successful Color Combinations. London: Blueprint, 1995.

APA

Emery, R. (1995). Creative duotone effects : a guide to choosing successful color combinations. London: Blueprint.

Chicago

Emery, Richard Creative Duotone Effects: A Guide to Choosing Successful Color Combinations. London: Blueprint, 1995.