Colwell, R. (1969). The teaching of instrumental music. Prentice-Hall.
Dyfyniad Arddull ChicagoColwell, Richard. The Teaching of Instrumental Music. Englewood Cliffs, N.J: Prentice-Hall, 1969.
Dyfyniad MLAColwell, Richard. The Teaching of Instrumental Music. Prentice-Hall, 1969.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.