World Health Organization & Cassel, J. (1970). The Education and training of engineers for environmental health. World Health Organization.
Citace podle Chicago (17th ed.)World Health Organization a John Cassel. The Education and Training of Engineers for Environmental Health. Geneva: World Health Organization, 1970.
Citace podle MLA (8th ed.)World Health Organization a John Cassel. The Education and Training of Engineers for Environmental Health. World Health Organization, 1970.
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