Ridgway, R. L., A. G. Gordon, N. E. Jackson, and W. Jolly, eds. Invasive Species Stakeholders: Collecting, Sharing and Using Information. Charles Valentine Riley Memorial Foundation, 2001. [Proceedings of a round table held on April 26, 2000, in Washington, DC.], 2001

Ridgway, R. L., A. G. Gordon, N. E. Jackson, and W. Jolly, eds. Invasive Species Stakeholders: Collecting, Sharing and Using Information. Charles Valentine Riley Memorial Foundation, 2001. [Proceedings of a round table held on April 26, 2000, in Washington, DC.], 2001, Box: 1. Charles Valentine Riley Memorial Foundation Records, MS0281. National Agricultural Library Special Collections. http://localhost:8081/repositories/4/archival_objects/55894 Accessed December 01, 2025.