Cita APA

Kowalchyk, G., & Lancaster, E. L. 1. (1994). Ear training book. United States: A. Publishing.

Citación estilo Chicago

Kowalchyk, Gayle, y E. L. 1948- Lancaster. Ear Training Book. United States: A. Publishing, 1994.

Cita MLA

Kowalchyk, Gayle, y E. L. 1948- Lancaster. Ear Training Book. United States: A. Publishing, 1994.