Keast, D. N. Assessment of the need for noise control research on electric power transformers and recators / prepared by D.N. Keast and C.G. Gordon - Washington : United States Government Printing Office, 1980 - xiv, 118 p. : ill. ; 28 cm. Subjects--Topical Terms: Electronic noiseElectronic circuits--Noise Dewey Class. No.: 621.38224