Louis Harris and Associates. (1970). The Public's view of environmental problems in the state of Washington. s.n.].
Цитирование в стиле Чикаго (17-е изд.)Louis Harris and Associates. The Public's View of Environmental Problems in the State of Washington. [New York?: s.n.], 1970.
Цитирование MLA (8-е изд.)Louis Harris and Associates. The Public's View of Environmental Problems in the State of Washington. s.n.], 1970.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.