佟力强. (2013). 首都互联网发展报告 2013 2013: Annual report of Beijing internet industry. 人民出版社.
Čikaški stil citiranja (17. izdanje)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.
MLA način citiranja (8. izdanje)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.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.