Lua APA (7ú heag.)

Ward, S. D. (1936). Viola: A fundamental course for individual or like-instrument class instruction / Sylvan D. Ward. Rubank.

Lua i Stíl Chicago (17ú heag.)

Ward, Sylvan D. Viola: A Fundamental Course for Individual or Like-instrument Class Instruction / Sylvan D. Ward. Miami, Fl.: Rubank, 1936.

Lua MLA (8ú heag.)

Ward, Sylvan D. Viola: A Fundamental Course for Individual or Like-instrument Class Instruction / Sylvan D. Ward. Rubank, 1936.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.