APA (7th ed.) Citation

Keller, K. M., Meisel, W., Tevelian, M., Jary, M., Porter, C., Angeli, P., . . . Schwedler, K. (1989). 1940 - 1943. Bob's Music.

Chicago Style (17th ed.) Citation

Keller, Karl Maria, et al. 1940 - 1943. Hamburg: Bob's Music, 1989.

MLA (9th ed.) Citation

Keller, Karl Maria, et al. 1940 - 1943. Bob's Music, 1989.