APA (7th ed.) Citation

Hughes, D., & Piper, F. (1985). Design theory (1a ed.). Cambridge University Press.

Chicago Style (17th ed.) Citation

Hughes, D.R, and F.C Piper. Design Theory. 1a ed. Cambridge: Cambridge University Press, 1985.

MLA (9th ed.) Citation

Hughes, D.R, and F.C Piper. Design Theory. 1a ed. Cambridge University Press, 1985.