Não informado. (1962). Social studies review. California Council for the Social Studies.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Social Studies Review. Sacramento, Calif: California Council for the Social Studies, 1962.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Social Studies Review. California Council for the Social Studies, 1962.
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