Machlup, F., & Bitros, G. (1976). Selected economic writings of Fritz Machlup. New York University Press.
Lua i Stíl Chicago (17ú heag.)Machlup, Fritz, agus George Bitros. Selected Economic Writings of Fritz Machlup. New York: New York University Press, 1976.
Lua MLA (9ú heag.)Machlup, Fritz, agus George Bitros. Selected Economic Writings of Fritz Machlup. New York University Press, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.