secret service woman, being confessions, experiences and opinions of Olga von Kopf, the famous international spy / H. de Halsalle 1650 : bevochten eendracht / Willem Frijhoff en Marijke Spies ; met medew. van Wiep van Bunge en Natascha Veldhorst Steinhauer, the kaiser's master spy : the story as told by himself / [Steinhauer] ; ed. by S.T. Felstead ; with an introduction by Reginald … 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 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 … background book spy web : a study of communist espionage / by Francis Noel-Baker Spies and traitors : a short history of espionage / Kurt Singer
