Dyfyniad APA

Organisation for Economic Co-operation and Development & ProQuest (Firm). (2006). Economic valuation of environmental health risks to children. Organisation for Economic Co-operation and Development.

Dyfyniad Arddull Chicago

Organisation for Economic Co-operation and Development and ProQuest (Firm). Economic Valuation of Environmental Health Risks to Children. Paris: Organisation for Economic Co-operation and Development, 2006.

Dyfyniad MLA

Organisation for Economic Co-operation and Development and ProQuest (Firm). Economic Valuation of Environmental Health Risks to Children. Organisation for Economic Co-operation and Development, 2006.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.