Dyfyniad APA

Seaton, A. (1989). Crofton and Douglas's Respiratory Diseases.

Dyfyniad Arddull Chicago

Seaton, Anthony. Crofton and Douglas's Respiratory Diseases. 1989.

Dyfyniad MLA

Seaton, Anthony. Crofton and Douglas's Respiratory Diseases. 1989.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.