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Dyfyniad Arddull Chicago佟力强. 首都互联网发展报告 2013 2013: Annual Report of Beijing Internet Industry. 人民出版社, 2013.
Dyfyniad MLA佟力强. 首都互联网发展报告 2013 2013: Annual Report of Beijing Internet Industry. 人民出版社, 2013.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.