APA aipamena

Walker, T. D., & Davis, D. A. (1990). Plan graphics (4th ed.). John Wiley & Sons.

Chicago Style aipamena

Walker, Theodore D., and David A. Davis. Plan Graphics. 4th ed. New York: John Wiley & Sons, 1990.

MLA aipamena

Walker, Theodore D., and David A. Davis. Plan Graphics. 4th ed. John Wiley & Sons, 1990.