APA Citation

Sigsgaard, T., & Heederik, D. (2010). Occupational Asthma. Basel: Birkhũser Basel.

Chicago Style Citation

Sigsgaard, Torben., and Dick Heederik. Occupational Asthma. Basel: Birkhũser Basel, 2010.

MLA Citation

Sigsgaard, Torben., and Dick Heederik. Occupational Asthma. Basel: Birkhũser Basel, 2010.

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