APA

Harper S., Association for Computing Machinery, ACM Special Interest Group on Hypertext H. a. W. & ACM Special Interest Group on Accessible Computing. (2007). Proceedings of the 2007 international cross-disciplinary conference on Web accessibility (W4A). New York, NY: ACM.

Chicago

Harper Simon, Association for Computing Machinery, ACM Special Interest Group on Hypertext Hypermedia and Web and ACM Special Interest Group on Accessible Computing. 2007. Proceedings of the 2007 international cross-disciplinary conference on Web accessibility (W4A). New York, NY: ACM.

Harvard

Harper S., Association for Computing Machinery, ACM Special Interest Group on Hypertext H. a. W. and ACM Special Interest Group on Accessible Computing. (2007). Proceedings of the 2007 international cross-disciplinary conference on Web accessibility (W4A). New York, NY: ACM.

MLA

Harper Simon, Association for Computing Machinery, ACM Special Interest Group on Hypertext Hypermedia and Web and ACM Special Interest Group on Accessible Computing. Proceedings of the 2007 international cross-disciplinary conference on Web accessibility (W4A). New York, NY: ACM. 2007.