Undercover operations (Espionage) -- See Espionage --subdivision Secret service under names of wars, etc., e.g. World War, 1939-1945--Secret service; United States--History--Civil War, 1861-1865--Secret service
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Undercover operations -- Gaza Strip. : Katz, Samuel M.,
2016
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Undercover operations -- Great Britain. : Nasiri, Omar.
2006
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Undercover operations -- Illinois -- Cook County. : Hake, Terrence,
2015
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Undercover operations -- Iran -- Fiction. : Simmons, Wayne,
2012
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Undercover operations -- Middle East. : Assad, Michele Rigby,
2018
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Undercover operations -- Monaco -- Fiction. : Oppenheim, E. Phillips
2016
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Undercover operations -- New Jersey. : Russell, Michael,
2013
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Undercover operations -- North America. : Caine, Alex,
2016
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Undercover operations -- Pakistan. : Nasiri, Omar.
2006
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Undercover operations -- Russia -- Comic books, strips, etc. : Edmondson, Nathan,
2014
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Undercover operations -- Southwest, New. : Schroeder, Lucinda Delaney,
2014
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Undercover operations -- West Bank. : Katz, Samuel M.,
2016
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Undercover wildlife agents -- See Also Game wardens
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