Chinese Black Chamber : An Adventure in Espionage

Bok av Herbert O.Yardley (The U.S.)
The book discloses the truth about spies using codes to fight against Japan in the Anti-Japanese War, the inside story of the Bureau of Investigation and Statistics of the Military Council and Dai Li's adytum, and the adventures of an American coder in China as well his unusual life as a spy against Japan in Chongqing.