Lockheed A-12: The CIA's Blackbird and other variants (Air Vanguard)
"True to the title, it focuses on the development of the A-12, M-21/D-21 and the YF-12 interceptor. As a model resource book, there are valuable references including color three views...Period photographs, some never before published, reveal internal components and construction details. If you are building an A-12, or considering converting an SR-71 to an A-12, this book would prove very helpful." --IPMS/USA