Geng Zhang1964BooksZhi shi chan quan fa xue =Zhonghua Renmin Gongheguo lü shi guan li gui zhang hui bianZhi shi chan quan min shi su song yan jiuMin jian wen xue yi shu de zhi shi chan quan bao hu yan jiuZhongguo fa lü yuan zhu zhi du dan sheng de qian qian hou houFa lü yuan zhu zhi du bi jiao yan jiu商业标志法Author data: Open Library