Gentlemen spies / by Kurt Singer Soviet atomic spies / Bernard Newman Soviet spy net / by E.H. Cookridge Vertoogh van de krijghs-oeffeninghe in 't particulier van musquet en spies / by een gevoeght door Karel Ketner, capitain-lt. over de compagnie van de guardes … Nederlandse schilderkunst : tussen detail en grandeur / Ad van der Blom, Ernest Kurpershoek, Claudia Thunnissen ; [red.: Kunsthistorisch advies en organisatiebureau D'Arts, Paul Spies] secrets of the German war office / by Armgaard Karl Graves, Late spy to the German Government background book spy web : a study of communist espionage / by Francis Noel-Baker Spies and traitors : a short history of espionage / Kurt Singer
