Não informado. (1977). Journal of environmental pathology and toxicology. American College of Toxicology.
Citação do estilo Chicago (17ª ed.)Não informado. Journal of Environmental Pathology and Toxicology. Park Forest South, Ill: American College of Toxicology, 1977.
Citação MLA (8ª ed.)Não informado. Journal of Environmental Pathology and Toxicology. American College of Toxicology, 1977.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.