Proceedings of the 21st international conference on World Wide Web. Association for Computing Machinery (ACM).
Chicago-referens (17:e uppl.)Proceedings of the 21st International Conference on World Wide Web. Association for Computing Machinery (ACM).
MLA-referens (9:e uppl.)Proceedings of the 21st International Conference on World Wide Web. Association for Computing Machinery (ACM).
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.