Popper, D. (1982). 40 studies high school - Höhe Schule - of cello playing, Opus 73. International Music.
Cita Chicago (17th ed.)Popper, David. 40 Studies High School - Höhe Schule - of Cello Playing, Opus 73. Nueva York: International Music, 1982.
Cita MLA (9th ed.)Popper, David. 40 Studies High School - Höhe Schule - of Cello Playing, Opus 73. International Music, 1982.
Atenció: Aquestes cites poden no estar 100% correctes.