Whistler, H. S. (1940). Bell Lyra: A fundamental course for individual or like-instrument class instruction / Harvey S.Whistler. Rubank.
Chicago-viite (17. p.)Whistler, Harvey S. Bell Lyra: A Fundamental Course for Individual or Like-instrument Class Instruction / Harvey S.Whistler. Miami, Fl.: Rubank, 1940.
MLA-viite (8. p.)Whistler, Harvey S. Bell Lyra: A Fundamental Course for Individual or Like-instrument Class Instruction / Harvey S.Whistler. Rubank, 1940.
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