Alexander, R. J. (1962). A primer of economic development. Macmillan.
Lua i Stíl Chicago (17ú heag.)Alexander, Robert J. A Primer of Economic Development. New York: Macmillan, 1962.
Lua MLA (9ú heag.)Alexander, Robert J. A Primer of Economic Development. Macmillan, 1962.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.