Conroy Virtus (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Conroy Virtus" in English language version.

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aiaahouston.org

Lowther 2012, p. 26. Lowther, Scott (March–April 2012). "Virtus" (PDF). Horizons. 37 (5). Houston, TX: American Institute of Aeronautics and Astronautics Houston Section.
Lowther 2012, p. 28. Lowther, Scott (March–April 2012). "Virtus" (PDF). Horizons. 37 (5). Houston, TX: American Institute of Aeronautics and Astronautics Houston Section.
Lowther 2012, p. 29. Lowther, Scott (March–April 2012). "Virtus" (PDF). Horizons. 37 (5). Houston, TX: American Institute of Aeronautics and Astronautics Houston Section.

"Space Shuttle Orders Giant Plane Developed". newspapers.com. The Modesto Bee. February 13, 1974. p. A17. Retrieved April 1, 2023.