Dyfyniad APA

Wolrld Health Organization. (2011). DDT in indoor residual spraying: Human health aspects. World Health Organization.

Dyfyniad Arddull Chicago

Wolrld Health Organization. DDT in Indoor Residual Spraying: Human Health Aspects. Geneva, Switzerland: World Health Organization, 2011.

Dyfyniad MLA

Wolrld Health Organization. DDT in Indoor Residual Spraying: Human Health Aspects. World Health Organization, 2011.

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