APA (7th ed.) Citation

(1992). Occupational asthma. Hanley & Belfus [u.a.].

Chicago Style (17th ed.) Citation

Occupational Asthma. Philadelphia: Hanley & Belfus [u.a.], 1992.

MLA (9th ed.) Citation

Occupational Asthma. Hanley & Belfus [u.a.], 1992.

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