Papandreou, A. G., & Wheeler, J. T. (1954). Competition and its regulation. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Papandreou, Andreas George, agus John T. Wheeler. Competition and Its Regulation. New York: Prentice-Hall, 1954.
Lua MLA (9ú heag.)Papandreou, Andreas George, agus John T. Wheeler. Competition and Its Regulation. Prentice-Hall, 1954.