Louis Harris and Associates. (1970). The Public's view of environmental problems in the state of Washington. s.n.].
Style de citation Chicago (17e éd.)Louis Harris and Associates. The Public's View of Environmental Problems in the State of Washington. [New York?: s.n.], 1970.
Style de citation MLA (8e éd.)Louis Harris and Associates. The Public's View of Environmental Problems in the State of Washington. s.n.], 1970.
Attention : ces citations peuvent ne pas être correctes à 100%.