Nash, G. B. (1991). Freedom by degrees: Emancipation in Pennsylvania and its aftermath. Oxford University Press.
Цитирование в стиле Чикаго (17-е изд.)Nash, Gary B. Freedom by Degrees: Emancipation in Pennsylvania and Its Aftermath. New York: Oxford University Press, 1991.
Цитирование MLA (9-е изд.)Nash, Gary B. Freedom by Degrees: Emancipation in Pennsylvania and Its Aftermath. Oxford University Press, 1991.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.