Elder, W. (1863). Debt and resources of the United States: And the effect of secession upon the trade and industry of the loyal states. Philadelphia.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিElder, William. Debt and Resources of the United States: And the Effect of Secession upon the Trade and Industry of the Loyal States. Philadelphia, 1863.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিElder, William. Debt and Resources of the United States: And the Effect of Secession upon the Trade and Industry of the Loyal States. Philadelphia, 1863.
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