Letterhead 4 : an international collection of letterhead design

MLA

Pedersen, B. Martin, et al. Letterhead 4 : an International Collection of Letterhead Design. New York: Graphis, .

APA

Pedersen, B. Martin, Jenssen, H., Heck, A., Cramer, L., Acanfora, M., Chavez, D., Ford, C., & Parraga, A. (.). Letterhead 4 : an international collection of letterhead design. New York: Graphis.

Chicago

Pedersen, B. Martin, Heinke Jenssen, April Heck, Laura Cramer, Massimo Acanfora, Delfin Chavez, Carol Ford, and Alfredo Parraga. Letterhead 4: An International Collection of Letterhead Design. New York: Graphis, ..