Search Results for Communication -- History. - Narrowed by: Espionage -- United States -- History -- 20th century.SirsiDynix Enterprisehttps://catalogue.nlpl.ca/client/en_US/default/default/qu$003dCommunication$002b--$002bHistory.$0026qf$003dSUBJECT$002509Subject$002509Espionage$002b--$002bUnited$002bStates$002b--$002bHistory$002b--$002b20th$002bcentury.$002509Espionage$002b--$002bUnited$002bStates$002b--$002bHistory$002b--$002b20th$002bcentury.$0026te$003dILS$0026ps$003d300?dt=list2024-06-16T10:36:03ZBreaking the ring / John Barron.ent://SD_ILS/0/SD_ILS:857132024-06-16T10:36:03Z2024-06-16T10:36:03ZBy: Barron, John, 1930-<br/>Publication Date: 1987<br/>Format: Books<br/>Breaking the ring : the rise and fall of the Walker family spy network / John Barron. --ent://SD_ILS/0/SD_ILS:1428062024-06-16T10:36:03Z2024-06-16T10:36:03ZBy: Barron, John, 1930-<br/>Publication Date: 1988 1987<br/>Format: Books<br/>I pledge allegiance... : the true story of the Walkers ; an American spy family / by Howard Blum.ent://SD_ILS/0/SD_ILS:1413922024-06-16T10:36:03Z2024-06-16T10:36:03ZBy: Blum, Howard, 1948-<br/>Publication Date: 1987<br/>Format: Books<br/>