Communication Gear Shift

Ralph J. Ballew, John E. Culp
1972 Journal of Applied Communications  
At 8:30 A.M. the telephone rang. It was the signal that telephone communication had been established between the international trainees at TVA and Gardner Advertising Co., St. Louis.
doi:10.4148/1051-0834.2028 fatcat:bskdjzhcwffdpdn2e3y26umaxu