Breaking the ring
By: John Barron.
Publisher: Houghton Mifflin
Published: 1987
Place of publication: Boston
Language: eng
Number of pages: 244
Subjects: Walker, John Anthony, -- 1937-; Walker family; Whitworth, Jerry; United States. -- Federal Bureau of Investigation; United States. -- Navy -- Communication systems; Espionage -- Soviet Union -- History -- 20th century; Espionage -- United States -- History -- 20th century
Notes: 120,290

Bibliography: p. 225-236.