Lockheed A-12

Lockheed SR-71 Blackbird - Paul F Crickmore - Osprey Publishing Ltd 1986 - ISBN: 0850456533

Lockheed SR-71 - The Secret Mission Exposed - Paul F Crickmore - Osprey Publishing 1993 - ISBN: 1855326817

SR-71 Blackbird - Lockheed's Mach 3 Hot Shot - Paul F Crickmore - Osprey Publishing Ltd 1987 - ISBN: 0850457947

SR-71 Blackbird in Action - Lou Drendel - Squadron / Signal Publications 1982 - ISBN: 0897471369

US Spyplanes - Erik Simonsen - Arms & Armour Press 1985 - ISBN: 0853686262

A-12 Blackbird - Declassified - Jeannette Remak and Jospeh Ventolo Jr - MBI Publishing Company in 2001 - ISBN: 0760310009