Não informado. (1971). Environmental health and safety news. University of Washington, Environmental Research Laboratory.
Style de citation Chicago (17e éd.)Não informado. Environmental Health and Safety News. Seattle, Wash: University of Washington, Environmental Research Laboratory, 1971.
Style de citation MLA (8e éd.)Não informado. Environmental Health and Safety News. University of Washington, Environmental Research Laboratory, 1971.
Attention : ces citations peuvent ne pas être correctes à 100%.