Cita APA (7a ed.)
Heerema, E. (1984). Progressive class piano: A practical approach for beginners (2nd ed.). Califonia state Univ.
Cita Chicago Style (17a ed.)
Heerema, Elmer. Progressive Class Piano: A Practical Approach for Beginners. 2nd ed. Northbridge: Califonia state Univ, 1984.
Cita MLA (9a ed.)
Heerema, Elmer. Progressive Class Piano: A Practical Approach for Beginners. 2nd ed. Califonia state Univ, 1984.
Precaución: Estas citas no son 100% exactas.