Não informado. (2022). U.S. Government Research Reports. U.S. Department of Commerce, Office of Technical Services.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. U.S. Government Research Reports. Washington: U.S. Department of Commerce, Office of Technical Services, 2022.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. U.S. Government Research Reports. U.S. Department of Commerce, Office of Technical Services, 2022.
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