APA

Heath F., Association for Computing Machinery, ACM Special Interest Group on Information Retrieval & ACM Special Interest Group on Hypertext H. a. W. (2009). Proceedings of the 9th ACMIEEE-CS joint conference on Digital libraries. New York, NY: ACM.

Chicago

Heath Fred, Association for Computing Machinery, ACM Special Interest Group on Information Retrieval and ACM Special Interest Group on Hypertext Hypermedia and Web. 2009. Proceedings of the 9th ACMIEEE-CS joint conference on Digital libraries. New York, NY: ACM.

Harvard

Heath F., Association for Computing Machinery, ACM Special Interest Group on Information Retrieval and ACM Special Interest Group on Hypertext H. a. W. (2009). Proceedings of the 9th ACMIEEE-CS joint conference on Digital libraries. New York, NY: ACM.

MLA

Heath Fred, Association for Computing Machinery, ACM Special Interest Group on Information Retrieval and ACM Special Interest Group on Hypertext Hypermedia and Web. Proceedings of the 9th ACMIEEE-CS joint conference on Digital libraries. New York, NY: ACM. 2009.