APA (7th ed.) Citation

Quaisser, E., & Sprengel, H. (1986). Extrema. Deutsch.

Chicago Style (17th ed.) Citation

Quaisser, Erhard, and Hans-Jürgen Sprengel. Extrema. Thun u.a: Deutsch, 1986.

MLA (9th ed.) Citation

Quaisser, Erhard, and Hans-Jürgen Sprengel. Extrema. Deutsch, 1986.

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