Chartered Institute of Environmental Health. (2001). Environmental Health Journal. Chadwick House Group.
Citação do estilo Chicago (17ª ed.)Chartered Institute of Environmental Health. Environmental Health Journal. London: Chadwick House Group, 2001.
Citação MLA (8ª ed.)Chartered Institute of Environmental Health. Environmental Health Journal. Chadwick House Group, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.