"Earth Week: Prelude to Change" speech given by Lynn Greenwalt, V.P. of International Affairs at the National Wildlife Federation 4/20/90 at West Virginia University, 1990-04-20

"Earth Week: Prelude to Change" speech given by Lynn Greenwalt, V.P. of International Affairs at the National Wildlife Federation 4/20/90 at West Virginia University, 1990-04-20, 4537_vhs_038, Box: 2, Item: 4537_vhs_038. Audiovisual Media Collection, A&M 4537. West Virginia and Regional History Center. https://archives.lib.wvu.edu/repositories/2/archival_objects/194578 Accessed December 04, 2025.