APA (7th ed.) Citation

(1999). Anticholinergics in COPD. Boehringer Ingelheim.

Chicago Style (17th ed.) Citation

Anticholinergics in COPD. [Germany]: Boehringer Ingelheim, 1999.

MLA (9th ed.) Citation

Anticholinergics in COPD. Boehringer Ingelheim, 1999.

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