found: His Introduction to APL, 1984:CIP t.p. (Kenneth E. Iverson)
found: LC data base, 4-19-84(hdg.: Iverson, Kenneth E.)
found: Wikipedia WWW site, June 9, 2005(under Kenneth E. Iverson: Kenneth Eugene Iverson; b. Dec. 17, 1920, Camrose, Alta.; d. Oct. 19, 2004, Toronto; computer scientist most notable for developing the APL programming language)