Thompson, M., & Freeman, O. W. (1950). The conservation of Northwest resources. Northwest Conservation League.
Цитирование в стиле Чикаго (17-е изд.)Thompson, Margaret, и Otis W. Freeman. The Conservation of Northwest Resources. Seattle: Northwest Conservation League, 1950.
Цитирование MLA (8-е изд.)Thompson, Margaret, и Otis W. Freeman. The Conservation of Northwest Resources. Northwest Conservation League, 1950.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.