Não informado. (1944). Basic radio propagation predictions. U.S. Department of Commerce, National Bureau of Standards, Central Radio Propagation Laboratory.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Basic Radio Propagation Predictions. Washington: U.S. Department of Commerce, National Bureau of Standards, Central Radio Propagation Laboratory, 1944.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Basic Radio Propagation Predictions. U.S. Department of Commerce, National Bureau of Standards, Central Radio Propagation Laboratory, 1944.
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