APA (7th ed.) Citation

Supon Design Group, Phornirunlit, S., & Varner, G. (1997). Visual impact: Communicating through graphic design. Design Editions.

Chicago Style (17th ed.) Citation

Supon Design Group, Supon Phornirunlit, and Greg Varner. Visual Impact: Communicating Through Graphic Design. Washington, D.C: Design Editions, 1997.

MLA (9th ed.) Citation

Supon Design Group, et al. Visual Impact: Communicating Through Graphic Design. Design Editions, 1997.