Lado, R. (1964). Language teaching: A scientific approach. Mc Graw Hill.
Lua i Stíl Chicago (17ú heag.)Lado, Robert. Language Teaching: A Scientific Approach. New York: Mc Graw Hill, 1964.
Lua MLA (9ú heag.)Lado, Robert. Language Teaching: A Scientific Approach. Mc Graw Hill, 1964.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.