Flick, L. F. (1908). The Crusade Against Tuberculosis in Pennsylvania. Philadelphia.
Lua i Stíl Chicago (17ú heag.)Flick, Lawrence F. The Crusade Against Tuberculosis in Pennsylvania. Philadelphia, 1908.
Lua MLA (8ú heag.)Flick, Lawrence F. The Crusade Against Tuberculosis in Pennsylvania. Philadelphia, 1908.
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