April 2, 1967, The Washington Post: "The Gallup Poll- Vote at 18 Now Favored By 64 Per Cent of Public"April 2, 1967Gallup, George, 1930-2011http://rightsstatements.org/vocab/InC-EDU/1.0/enghttp://congressarchives.org/record/EMD_Working_Papers-f365-1967_04_02Article About The Lowering Of The Voting Age To 18 Years Old And The Results Of A Poll.