Ronning, P. (1980). The Finger-Picking Book: Ragtime, Swing, Traditional Songs. Doblinger.
Lua i Stíl Chicago (17ú heag.)Ronning, Paul. The Finger-Picking Book: Ragtime, Swing, Traditional Songs. Wien: Doblinger, 1980.
Lua MLA (8ú heag.)Ronning, Paul. The Finger-Picking Book: Ragtime, Swing, Traditional Songs. Doblinger, 1980.
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