Foster, H. D. Webster's Seventh of March Speech and the Secession Movement, 1850.
Цитирование в стиле Чикаго (17-е изд.)Foster, Herbert Darling. Webster's Seventh of March Speech and the Secession Movement, 1850.
Цитирование MLA (9-е изд.)Foster, Herbert Darling. Webster's Seventh of March Speech and the Secession Movement, 1850.
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