Numerical mapping of the continents for use in high-frequency skywave radio predictions /
D.H. Zacharisen.
APA Citation
Zacharisen, D. H., Institute for Telecommunication Sciences. (1972). Numerical mapping of the continents for use in high-frequency skywave radio predictions. Boulder, Co.: Institute for Telecommunication Sciences.
MLA Citation
Zacharisen, Donald H, and Institute for Telecommunication Sciences. Numerical Mapping of the Continents for Use In High-frequency Skywave Radio Predictions. Boulder, Co.: Institute for Telecommunication Sciences, 1972.
Warning: These citations may not always be complete (especially for serials).