APA (7th ed.) Citation

Armitage, M., Schönberg, A., Rothschild, O., Weston, E., Gershwin, G., & Dyer, C. (1937). Schoenberg. Schirmer.

Chicago Style (17th ed.) Citation

Armitage, Merle, Arnold Schönberg, Otto Rothschild, Edward Weston, George Gershwin, and Carlos Dyer. Schoenberg. New York: Schirmer, 1937.

MLA (9th ed.) Citation

Armitage, Merle, et al. Schoenberg. Schirmer, 1937.