Bibliography on ionospheric propagation of radio waves /

Chicago citation style
Nupen, Wilhelm. Bibliography on ionospheric propagation of radio waves /. 1960. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/011419855. (Accessed September 23, 2018.)
APA citation style
Nupen, Wilhelm, (1960) Bibliography on ionospheric propagation of radio waves /. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/011419855
MLA citation style
Nupen, Wilhelm. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/011419855>.
Note: These citations are programmatically generated and may be incomplete.