Weightlifting was one of the sports contested at the 1971 Pan American Games in Cali, Colombia. In this edition, four sets of medals were awarded for each weight.
Book: Olderr. Steven. 2009. The Pan American Games / Los Juegos Panamericanos: A Statistical History, 1951-1999 / Una Historia Estadistica, 1951-1999. McFarland. 152–164. 978-0786443369.