Dyfyniad APA

Fontana, G., & Pistolesi, M. (2003). Cough · 3: Chronic cough and gastro-oesophageal reflux. BMJ Group.

Dyfyniad Arddull Chicago

Fontana, G., and M. Pistolesi. Cough · 3: Chronic Cough and Gastro-oesophageal Reflux. BMJ Group, 2003.

Dyfyniad MLA

Fontana, G., and M. Pistolesi. Cough · 3: Chronic Cough and Gastro-oesophageal Reflux. BMJ Group, 2003.

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