Cita APA (7th ed.)

Erskine, J. (1944). A musical companion: A guide to the understanding and enjoyment of musica. Tudor Publishing.

Cita Chicago (17th ed.)

Erskine, John. A Musical Companion: A Guide to the Understanding and Enjoyment of Musica. Nueva York: Tudor Publishing, 1944.

Cita MLA (9th ed.)

Erskine, John. A Musical Companion: A Guide to the Understanding and Enjoyment of Musica. Tudor Publishing, 1944.