00338nam a2200133 a 450000500170000008200150001710000150003210000170004724500310006425000080009526000380010330000290014163000340017020251203090613.0  a659.2bBLA  aBlack, Sam  aGillman, F.G  aPractical public relations  a4th  aDelhibUniversal Book Stallc1984  axiii, 229 p.b22 cm.cPB  aManagement - Public Relations