APA (7th ed.) Citation

Purves, R., & Purves, R. C. (2010). Proceedings of the 6th Workshop on Geographic Information Retrieval. Association for Computing Machinery.

Chicago Style (17th ed.) Citation

Purves, Ross, and Ross Contributor Purves. Proceedings of the 6th Workshop on Geographic Information Retrieval. [Place of publication not identified]: Association for Computing Machinery, 2010.

MLA (9th ed.) Citation

Purves, Ross, and Ross Contributor Purves. Proceedings of the 6th Workshop on Geographic Information Retrieval. Association for Computing Machinery, 2010.