APA (7th ed.) Citation

Lidholm, I., Henze, H. W., Schönberg, A., Nørgård, P., & Poulenc, F. (1991). Masters of 20th century a cappella. Koch.

Chicago Style (17th ed.) Citation

Lidholm, Ingvar, Hans Werner Henze, Arnold Schönberg, Per Nørgård, and Francis Poulenc. Masters of 20th Century a Cappella. München: Koch, 1991.

MLA (9th ed.) Citation

Lidholm, Ingvar, et al. Masters of 20th Century a Cappella. Koch, 1991.