APA (7th ed.) Citation

Cullen, C. D. (2001). Then is now: Sampling from the past for today's graphics. Rockport Publishers.

Chicago Style (17th ed.) Citation

Cullen, Cheryl Dangel. Then Is Now: Sampling from the Past for Today's Graphics. Gloucester, Mass: Rockport Publishers, 2001.

MLA (9th ed.) Citation

Cullen, Cheryl Dangel. Then Is Now: Sampling from the Past for Today's Graphics. Rockport Publishers, 2001.