Barden, R. P. (1972). Chest Disease Syllabus (Pecho Syllabus Enfermedades). s.n.
Chicago Style (17th ed.) CitationBarden, Robert P. Chest Disease Syllabus (Pecho Syllabus Enfermedades). Chicago: s.n, 1972.
MLA (9th ed.) CitationBarden, Robert P. Chest Disease Syllabus (Pecho Syllabus Enfermedades). s.n, 1972.
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