Sor, F., & Segovia, A. (1945). Twenty studies for the guitar. Edward B. Marks Music.
Dyfyniad Arddull ChicagoSor, Fernando, and Andres Segovia. Twenty Studies for the Guitar. New York: Edward B. Marks Music, 1945.
Dyfyniad MLASor, Fernando, and Andres Segovia. Twenty Studies for the Guitar. Edward B. Marks Music, 1945.
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