Fleegler, R., Huebner, A., & Patterson, J. (2004). Twentieth-century United States history. Washington: United States Department of State, Bureau of Educational and Cultural Affairs.
শিকাগো স্টাইলে সাইটেশনFleegler, Robert, Andrew Huebner, এবং James Patterson. Twentieth-century United States History. Washington: United States Department of State, Bureau of Educational and Cultural Affairs, 2004.
এমএলএ সাইটেশনFleegler, Robert, Andrew Huebner, এবং James Patterson. Twentieth-century United States History. Washington: United States Department of State, Bureau of Educational and Cultural Affairs, 2004.
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