Pan American Union. (1933). Bibliographies on Pan American Topics: Suggested for high schools. Pan American Union.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPan American Union. Bibliographies on Pan American Topics: Suggested for High Schools. Washington: Pan American Union, 1933.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPan American Union. Bibliographies on Pan American Topics: Suggested for High Schools. Pan American Union, 1933.
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