APA (7th ed.) Citation

Engstfeld, W., Degen, B., Eckinger, I., & Weiss, P. (1993). Songs and ballads. Nabel Records.

Chicago Style (17th ed.) Citation

Engstfeld, Wolfgang, Bob Degen, Isla Eckinger, and Peter Weiss. Songs and Ballads. Aachen: Nabel Records, 1993.

MLA (9th ed.) Citation

Engstfeld, Wolfgang, et al. Songs and Ballads. Nabel Records, 1993.