Little, I. M. D., & Scott, M. F. (1976). Using shadow prices. Heinemann Educational.
Lua i Stíl Chicago (17ú heag.)Little, Ian Malcolm David, agus Maurice FitzGerald Scott. Using Shadow Prices. London: Heinemann Educational, 1976.
Lua MLA (9ú heag.)Little, Ian Malcolm David, agus Maurice FitzGerald Scott. Using Shadow Prices. Heinemann Educational, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.