APA Citation

(1977). The Natural History of Chronic Bronchitis and Emphysema.

Citação norma Chicago

The Natural History of Chronic Bronchitis and Emphysema. 1977.

MLA Citation

The Natural History of Chronic Bronchitis and Emphysema. 1977.

Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.