Stockwell, R. P. (1973). The grammatical structures of English and Spanish. The University Chicago.
Lua i Stíl Chicago (17ú heag.)Stockwell, Robert P. The Grammatical Structures of English and Spanish. Chicago: The University Chicago, 1973.
Lua MLA (9ú heag.)Stockwell, Robert P. The Grammatical Structures of English and Spanish. The University Chicago, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.