United States. Soil Conservation Service. Pacific Northwest erosion control projects: Annual report.
Цитирование в стиле Чикаго (17-е изд.)United States. Soil Conservation Service. Pacific Northwest Erosion Control Projects: Annual Report. [Spokane, Wash.?].
Цитирование MLA (8-е изд.)United States. Soil Conservation Service. Pacific Northwest Erosion Control Projects: Annual Report.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.