Blandford, Edmund L., SS Intelligence, The Nazi Secret Service, Edison, NJ: Castle Books, 2001.
Brissard, André, The Nazi Secret Service, New York: W.W. Norton & Co., Inc., 1974. (History of the SD up to 1939.)
Butler, Rupert, Black Angels, The, New York: St. Martin’s Press, 1979.
Graber, G.S., History of the SS, New York: David McKay Company, Inc., 1978.
Höhne, Heinz, The Order of the Death’s Head, The Story of Hitler’s S.S., New York, Coward-McCann, Inc., 1969.
Lozowick, Yaacov, Hitler’s Bureaucrats, The Nazi Security Police and the Banality Of Evil, NY: Continuum, 2002.
Mollo, Andrew, A Pictorial History of the SS, 1923-1945, New York: Stein and Day, Publishers, 1977.
Mollo, Andrew, Uniforms of the SS, Vol. 5, Sicherheitsdienst Und Sicherheitspolizei, 1931-1945, London: Windrow & Greene Ltd., 1992.
Reitlinger, Gerald, The SS, Alibi of a Nation, 1922-1945, New York (?): Da Capo Press, 1989 (unabridged republication of the Viking Press 1957 edition).
WWII Netherlands Escape Lines 