Radioplane BTT (Spanish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Radioplane BTT" in Spanish language version.

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2books.google.com

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archive.org

Newcome, Laurence R. (2004). Unmanned Aviation: A Brief History of Unmanned Aerial Vehicles. Reston, VA: American Institute of Aeronautics and Astronautics. pp. 73. ISBN 978-1-56347-644-0. doi:10.2514/4.868894.

books.google.com

Jacobs, Horace ; Whitney, Eunice Engelke. Missile and Space Projects Guide 1962, Springer, 1962, p. 224.
"Pilotless Photo Drone Takes Aerial Pictures" Popular Mechanics, June 1956, p. 144 bottom article.

doi.org

dx.doi.org

Newcome, Laurence R. (2004). Unmanned Aviation: A Brief History of Unmanned Aerial Vehicles. Reston, VA: American Institute of Aeronautics and Astronautics. pp. 73. ISBN 978-1-56347-644-0. doi:10.2514/4.868894.