Sumner, I. K. (2011). A peace corps volunteer recalls his experiences in the Philippines. Bulletin of the American Historical Collection.
Chicago-referens (17:e uppl.)Sumner, Ivan K. "A Peace Corps Volunteer Recalls His Experiences in the Philippines." Bulletin of the American Historical Collection 2011.
MLA-referens (9:e uppl.)Sumner, Ivan K. "A Peace Corps Volunteer Recalls His Experiences in the Philippines." Bulletin of the American Historical Collection, 2011.
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