CIA/CSI/ History Staff Monograph, The Central Intelligence Agency and Overhead Reconnaissance: The U-2 and Oxcart Programs, 16 July 2002.

This is a CIA History Staff monograph by Gregory W. Pedlow and Donald E. Welzenbach, written in 1992 and approved for release in 2011. It covers the CIA's manned overhead reconnaissance program from 1954 to 1974 and its two aircraft, the U-2 and the A-12 OXCART. It follows their development, the overflights of the Soviet Union, the downing of Francis Gary Powers in 1960, and later operations. One section is titled "U-2s, UFOs, and Operation BLUE BOOK."

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The Central Intelligence Agency
and Overhead Reconnaissance:
The U-2 and OXCART Programs, 1954-1974
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