World Health Organization & ebrary, Inc. (2006). Tuberculosis and air travel: Guidelines for prevention and control (2nd ed.). World Health Organization.
Chicago-viite (17. p.)World Health Organization ja Inc ebrary. Tuberculosis and Air Travel: Guidelines for Prevention and Control. 2nd ed. Geneva: World Health Organization, 2006.
MLA-viite (9. p.)World Health Organization ja Inc ebrary. Tuberculosis and Air Travel: Guidelines for Prevention and Control. 2nd ed. World Health Organization, 2006.
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