APA (7th ed.) Citation

Bayer AG. (1991). Bayer-Umweltschutz.

Chicago Style (17th ed.) Citation

Bayer AG. Bayer-Umweltschutz. Leverkusen, 1991.

MLA (9th ed.) Citation

Bayer AG. Bayer-Umweltschutz. 1991.

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