APA (7th ed.) Citation

Ullrich, W., & Berger, G. Tiere der Steppe (o.A.). Union Verl.

Chicago Style (17th ed.) Citation

Ullrich, Wolfgang, and Gotthart Berger. Tiere Der Steppe. o.A. Dresden: Union Verl.

MLA (8th ed.) Citation

Ullrich, Wolfgang, and Gotthart Berger. Tiere Der Steppe. o.A. Union Verl.

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