APA (7th ed.) Citation

(1973). Biologie 12. Volk und Wissen.

Chicago Style (17th ed.) Citation

Biologie 12. Berlin: Volk und Wissen, 1973.

MLA (8th ed.) Citation

Biologie 12. Volk und Wissen, 1973.

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