Sumner, I. K. (2011). A peace corps volunteer recalls his experiences in the Philippines. Bulletin of the American Historical Collection.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSumner, Ivan K. "A Peace Corps Volunteer Recalls His Experiences in the Philippines." Bulletin of the American Historical Collection 2011.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSumner, Ivan K. "A Peace Corps Volunteer Recalls His Experiences in the Philippines." Bulletin of the American Historical Collection, 2011.
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