Helpman, E. (2004). The mystery of economic growth. Belknap Press of Harvard University Press.
Lua i Stíl Chicago (17ú heag.)Helpman, Elhanan. The Mystery of Economic Growth. Cambridge, Mass.: Belknap Press of Harvard University Press, 2004.
Lua MLA (8ú heag.)Helpman, Elhanan. The Mystery of Economic Growth. Belknap Press of Harvard University Press, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.