Nguage> AN exteNsioN of ALGOL 60, used to write the ESPOL compiler oN the Burroughs B5500, Burroughs B6500, aNd Burroughs B6700. ["Burroughs B6700 ExteNded ALGOL LaNguage INformatioN MaNual", No. 5000128 (Jul 1971)]. [Sammet 1969, p. 196]. (1995-05-09)