Ward, S. D. (1936). Viola: A fundamental course for individual or like-instrument class instruction / Sylvan D. Ward. Rubank.
Citazione stile Chigago Style (17a edizione)Ward, Sylvan D. Viola: A Fundamental Course for Individual or Like-instrument Class Instruction / Sylvan D. Ward. Miami, Fl.: Rubank, 1936.
Citatione MLA (8a ed.)Ward, Sylvan D. Viola: A Fundamental Course for Individual or Like-instrument Class Instruction / Sylvan D. Ward. Rubank, 1936.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.