It is difficult to imagine a subject with more elusive data than this. The source and location of clandestine radio broadcasts are, by definition, secret. White' stations openly identify themselves (such as Radio Free Europe), and gray' stations are purportedly operated by dissident groups within a country, although actually they might be located in another nation; but black' stations transmit broadcasts by one side disguised as broadcasts by another. . . . [This] is an extraordinary book. It belongs in every research library concerned with war and revolution and international communications. A valuable appendix lists known clandestine radio stateions, 1948-1985. Choice

In this ambitious and impressive study two academic specialists in the field of political communication have endeavored to cover the history of such broadcasts from the beginnings in the 1930s through the use of psychological warfare and deception of World War II to the manifold practice of gray' and black' propaganda that had punctuated the conflict of the postwar period.
Foreign Affairs