APA (7th ed.) Citation

Dietrich, G. (1969). Biologie 7. Volk und Wissen.

Chicago Style (17th ed.) Citation

Dietrich, Gerhard. Biologie 7. Berlin: Volk und Wissen, 1969.

MLA (8th ed.) Citation

Dietrich, Gerhard. Biologie 7. Volk und Wissen, 1969.

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