A musical companion : a guide to the understanding and enjoyment of music

MLA

Erskine, John and A. L. Bacharach. A musical companion : a guide to the understanding and enjoyment of music. New York : A.A. Knopf, 1935.

APA

Erskine, J. & Bacharach, A. (1935). A musical companion : a guide to the understanding and enjoyment of music. New York : A.A. Knopf.

Chicago

Erskine, John and A. L. Bacharach. A musical companion : a guide to the understanding and enjoyment of music. New York : A.A. Knopf, 1935.