TY - BOOK AU - Butcher,Ginger ED - United States. TI - Tour of the electromagnetic spectrum SN - 9780996778008 AV - QC661 .T68 2015 PY - 2015/// CY - Washington, DC PB - National Aeronautics and Space Administration KW - Electromagnetic waves KW - Artificial satellites N1 - Shipping list no.: 2016-0155-P; "NP-2015-06-1938-HQ"--Page 4 of cover ER -