Não informado. (1970). Brookings Papers on Economic Activity. Brookings Institution.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Brookings Papers on Economic Activity. Washington: Brookings Institution, 1970.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Brookings Papers on Economic Activity. Brookings Institution, 1970.
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