Benward, B. (1989). Advanced sightsinging and ear training: Strategies and applications. W.C. Brown.
Chicago-viite (17. p.)Benward, Bruce. Advanced Sightsinging and Ear Training: Strategies and Applications. Dubuque, Iowa: W.C. Brown, 1989.
MLA-viite (9. p.)Benward, Bruce. Advanced Sightsinging and Ear Training: Strategies and Applications. W.C. Brown, 1989.
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