1
by Kahn, David, 1930-
Published 1978
...Hitler's spies :...
Book
2
by Conboy, Kenneth J.
Published 2000
...Spies and commandos :...
Book
3
by O'Donnell, Patrick K., 1969-
Published 2004
...Operatives, spies, and saboteurs :...
Book
4
by Yardley, Herbert O. 1889-1958.
Published 2004
Book
5
by Stephan, Robert W., 1951-
Published 2004
Book