APA (7th ed.) Citation

Sondermann, M., & Schroeder, W. (1986). Bonn. Bourvier.

Chicago Style (17th ed.) Citation

Sondermann, Michael, and Wulf-Peter Schroeder. Bonn. Bonn: Bourvier, 1986.

MLA (9th ed.) Citation

Sondermann, Michael, and Wulf-Peter Schroeder. Bonn. Bourvier, 1986.

Warning: These citations may not always be 100% accurate.