http://blog.makezine.com/archive/2010/04/radio_monitoring_book_re-released_u.html

"Radio Monitoring: The How-To Guide" (re-)Released Under CC Licence

"Radio Monitoring: The How-To Guide" (re-)Released Under CC Licence

After two editions and thousands of copies, "Radio Monitoring: The How-To Guide" has been published online under a CC license. Big thanks to T.J. "Skip" Arey, N2EI.