TY - BOOK AU - Compaine,Benjamin M TI - Who owns the media ?: Concentration of ownership in the mass communications industry U1 - 380.3/0973 19 PY - 1982/// CY - White Plains, NY PB - Knowledge Industry Publications KW - Truyền thông KW - Phương tiện truyền thông KW - Đa phương tiện KW - Mass Media KW - Economic aspects KW - United States ER -