Tolong jelaskan mengenai Daftar pustaka dari Manifesto Ostend

Langley, Lester D. "Slavery, Reform, and American Policy in Cuba, 1823-1878." Revista de Historia de América (1968): 71-84. in JSTOR

Sexton, Jay. "Toward a synthesis of foreign relations in the Civil War era, 1848–77." American Nineteenth Century History (2004) 5#3 pp: 50-73.

Webster, Sidney. "Mr. Marcy, the Cuban Question and the Ostend Manifesto." Political Science Quarterly (1893) 8#1 pp: 1-32. in Jstor