Driggs, H. R. (1916). Live language lessons: Elementary book. The University Pub. Co..
Lua i Stíl Chicago (17ú heag.)Driggs, Howard R. Live Language Lessons: Elementary Book. Chicago ; Lincoln: The University Pub. Co., 1916.
Lua MLA (8ú heag.)Driggs, Howard R. Live Language Lessons: Elementary Book. The University Pub. Co., 1916.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.