Não informado. (2022). Publications of the United States Naval Observatory. Government Printing Office.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Publications of the United States Naval Observatory. Washington: Government Printing Office, 2022.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Publications of the United States Naval Observatory. Government Printing Office, 2022.
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