Empire of fear
Vladimir Mikhaĭlovich Petrov (Author), Evdokia Petrov (Author)
"The story of ... [the authors'] lives in the Soviet Union, and especially ... as permanent career officers of the most secret organ of the Soviet State, at various times known as the O. G. P. U., N. K. V. D., M. G. B., and M. V. D."
Print Book, English, 1956
Frederick A. Praeger, New York, 1956