Wu, S., & Pontney, J. A. (1967). An introduction to modern demand theory. Random House.
Lua i Stíl Chicago (17ú heag.)Wu, Shih-yen, agus Jack A. Pontney. An Introduction to Modern Demand Theory. New York: Random House, 1967.
Lua MLA (9ú heag.)Wu, Shih-yen, agus Jack A. Pontney. An Introduction to Modern Demand Theory. Random House, 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.