Md. semi-automatic weapons ban in jeopardy after Supreme Court ruling - Maryland Matters
Gun expert breaks down difference between semi-automatic and fully-automatic guns | KVAL
Semiautomatic pistol | weapon | Britannica
Wal-Mart To End Sales Of Some Semi-Automatic Rifles, Citing Low Demand | Colorado Public Radio
Evolution of Semi-Automatic Weapons
Experimental semi-automatic rifles, 1919-1931- excluding Garand's and Pedersen's rifles - Springfield Armory National Historic Site (U.S. National Park Service)