Samuelson, P. A. (1958). Readings in economics. Mc Graw Hill.
Lua i Stíl Chicago (17ú heag.)Samuelson, Paul A. Readings in Economics. New York: Mc Graw Hill, 1958.
Lua MLA (9ú heag.)Samuelson, Paul A. Readings in Economics. Mc Graw Hill, 1958.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.