Seaton, A. (1989). Crofton and Douglas's Respiratory Diseases.
Cita Chicago Style (17a ed.)Seaton, Anthony. Crofton and Douglas's Respiratory Diseases. 1989.
Cita MLA (9a ed.)Seaton, Anthony. Crofton and Douglas's Respiratory Diseases. 1989.
Precaución: Estas citas no son 100% exactas.