Não informado. (1963). Ionospheric predictions. U.S. Department of Commerce, National Bureau of Standards, Central Radio Propagation Laboratory.
Chicago-Zitierstil (17. Ausg.)Não informado. Ionospheric Predictions. Washington: U.S. Department of Commerce, National Bureau of Standards, Central Radio Propagation Laboratory, 1963.
MLA-Zitierstil (8. Ausg.)Não informado. Ionospheric Predictions. U.S. Department of Commerce, National Bureau of Standards, Central Radio Propagation Laboratory, 1963.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.