APA (7th ed.) Citation

Haug, G., & Haug, M. (1972). Lichter leuchten am Abend. Calwer.

Chicago Style (17th ed.) Citation

Haug, Gerda, and Martin Haug. Lichter Leuchten Am Abend. Stuttgart: Calwer, 1972.

MLA (9th ed.) Citation

Haug, Gerda, and Martin Haug. Lichter Leuchten Am Abend. Calwer, 1972.