James, S. L. (1990). Normal language acquisition. Little, Brown.
Lua i Stíl Chicago (17ú heag.)James, Sharon L. Normal Language Acquisition. Boston: Little, Brown, 1990.
Lua MLA (9ú heag.)James, Sharon L. Normal Language Acquisition. Little, Brown, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.