Frequency management principles, spectrum engineering measurements. 

 - [Washington, D.C.,  1969]. 
 - [121] p., 1 colored pl. :  ill. 
<br/><br/> Handbook.  May 29, 1969.  Cover title.  4to.  [Issued with perforations].  Distribution made by issuing office.  CRDP Program Historic Shelflist record. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radio frequency--Handbooks, manuals, etc.
<br/><br/><label>GPO Item No.: </label>0431-C-04 
<br/><br/><label>Gov. Doc. Class. No.: </label>TD 4.8/2:6050.23