Driggs, H. R. (1915). Live language lessons ... The University Pub. Co..
Lua i Stíl Chicago (17ú heag.)Driggs, Howard R. Live Language Lessons ... Chicago ; Lincoln [etc.]: The University Pub. Co., 1915.
Lua MLA (8ú heag.)Driggs, Howard R. Live Language Lessons ... The University Pub. Co., 1915.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.