Washington (State). Department of Natural Resources & Washington Natural Heritage Program. (1983). State of Washington natural heritage plan. Washington Natural Heritage Program.
Цитирование в стиле Чикаго (17-е изд.)Washington (State). Department of Natural Resources и Washington Natural Heritage Program. State of Washington Natural Heritage Plan. [Olympia, WA]: Washington Natural Heritage Program, 1983.
Цитирование MLA (8-е изд.)Washington (State). Department of Natural Resources и Washington Natural Heritage Program. State of Washington Natural Heritage Plan. Washington Natural Heritage Program, 1983.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.