Widows / William R. Corson, Susan B. Trento, a. Joseph J. Trento. - New York : Crown publ., [1979]. - xi, 465 p. : [12] inset l. ill. ; 24 cm.см.. - (History). - ISBN 0-517-57235-4[MFN: 20557]
The KGB against the "Main enemy" : how the Soviet intelligence service operates against the United States / by Herbert Romerstein, Stanislav Levchenko. - Lexington ; Toronto : Heart a. Comp., c.1989. - xiii, 369 p. ; 24 cm.см.. - (Lexington books : Politics/Current events). - ბიბლიოგრ.: გვ. 347-362. - ISBN 0-669-11228-3[MFN: 44695]