Bibliography
- http://www.legionxxiv.org/signum/
- http://www.roman-empire.net/army/leg-standards.html
- http://www.fectio.org.uk/articles/draco.htm
- http://en.wikipedia.org/wiki/The_Eagle_(2011_film)
- The Civilization of Rome by Pierre Grimal, and translated by Professor W. S. Maguinness
Image Bibliography
- http://www.legionxxiv.org/signum/ (The Aquila, The Vexillum, The Imago, The Draco)
- http://commons.wikimedia.org/wiki/File:Roman_signum.jpg (The Manus)
- http://en.wikipedia.org/wiki/File:The_Eagle_Poster.jpg (The Eagle Man poster)
- http://commons.wikimedia.org/wiki/File:Flag_of_Wales.svg (The Welsh Flag)
- http://www.roman-empire.net/army/leg-standards.html (The holders of the Standards)