Ekberg. History as They Lived It. Southern Illinois University Press.
Цитирование в стиле Чикаго (17-е изд.)Ekberg. History as They Lived It. Southern Illinois University Press.
Цитирование MLA (8-е изд.)Ekberg. History as They Lived It. Southern Illinois University Press.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.