Seaton, A. (1989). Crofton and Douglas's Respiratory Diseases. Blakwell Scientific Publications.
Lua i Stíl Chicago (17ú heag.)Seaton, Anthony. Crofton and Douglas's Respiratory Diseases. Massachusetts: Blakwell Scientific Publications, 1989.
Lua MLA (9ú heag.)Seaton, Anthony. Crofton and Douglas's Respiratory Diseases. Blakwell Scientific Publications, 1989.
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