Romanoff, M. R. (1991). Language and study skills for learners of English. Prentice Hall Regents.
Lua i Stíl Chicago (17ú heag.)Romanoff, Marjorie R. Language and Study Skills for Learners of English. Englewood Cliffs, N.J: Prentice Hall Regents, 1991.
Lua MLA (9ú heag.)Romanoff, Marjorie R. Language and Study Skills for Learners of English. Prentice Hall Regents, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.