World Health Organization. (1990). Health education in the control of schistosomiasis. World Health Organization.
Citace podle Chicago (17th ed.)World Health Organization. Health Education in the Control of Schistosomiasis. Geneva: World Health Organization, 1990.
Citace podle MLA (8th ed.)World Health Organization. Health Education in the Control of Schistosomiasis. World Health Organization, 1990.
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