00341nam a2200121Ia 4500082002000000100001800020245007200038260002700110300001000137490004100147500000500188700002600193  a658.45bUn58.AC  aUNESCO, Paris  aApproaches to communication planningbessayscEd. by John Middleton  aParisbThe Auth.c1980  a300p.  aMonographs in communication planning  a  aMiddleton, John ; ed.