Herrold, R. M. (1991). New approaches to elementary classroom music (2nd ed.). Prentice-Hall.
Cita Chicago (17th ed.)Herrold, Rebecca M. New Approaches to Elementary Classroom Music. 2nd ed. Englewood Cliffs, N.J: Prentice-Hall, 1991.
Cita MLA (9th ed.)Herrold, Rebecca M. New Approaches to Elementary Classroom Music. 2nd ed. Prentice-Hall, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.