A radio frequency user's guide to the Space Environment Services Center geophysical alert broadcasts [microform] / David A. Rosenthal, Joseph W. Hirman
Boulder, Colo. : U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, Environmental Research Laboratories, Space Environment Laboratory, [1992] Springfield, VA : For sale by the National Technical Information Service.
Distributed to depository libraries in microfiche. Shipping list no.: 92-2715-M. "A revision of NOAA technical memorandum SEL 80, June 1990"--P. ii.
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Microfiche. [Washington, D.C.?] : Supt. of Docs., U.S.G.P.O., [1992]. 1 microfiche : negative ; 11 x 15 cm.
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