Fleegler, R., Huebner, A., & Patterson, J. (2004). Twentieth-century United States history. Washington: United States Department of State, Bureau of Educational and Cultural Affairs.
استشهاد بنمط شيكاغوFleegler, Robert, Andrew Huebner, و James Patterson. Twentieth-century United States History. Washington: United States Department of State, Bureau of Educational and Cultural Affairs, 2004.
MLA استشهادFleegler, Robert, Andrew Huebner, و James Patterson. Twentieth-century United States History. Washington: United States Department of State, Bureau of Educational and Cultural Affairs, 2004.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.