United Nation Space Command Defense Force <http://www.solidmercury.org/unscdf/>.

"Kinetic Energy Penetrator." Wikipedia <http://en.wikipedia.org/wiki/Kinetic_energy_penetrator>.

"M829 120mm, APFSDS-T." Federation of American Scientists Military Analysis Network <http://www.fas.org/man/dod-101/sys/land/m829a1.htm>.

Halo 1 and Halo 2 game manuals.

Howard Ross, former munitions and supply sergeant, United States Army Reserve.