APA (7th ed.) Citation

Hughes, D. R., & Piper, F. C. (1988). Design theory (1. paperback ed. with corr.). Cambridge Univ. Pr.

Chicago Style (17th ed.) Citation

Hughes, Daniel R., and Frederick C. Piper. Design Theory. 1. paperback ed. with corr. Cambridge u.a: Cambridge Univ. Pr, 1988.

MLA (9th ed.) Citation

Hughes, Daniel R., and Frederick C. Piper. Design Theory. 1. paperback ed. with corr. Cambridge Univ. Pr, 1988.