Home › Authors › Polar Plan Conference (1969 Skyland-Shenandoah National Park, Va.) 👤 Polar Plan Conference (1969 Skyland-Shenandoah National Park, Va.) 1 book Books by Polar Plan Conference (1969 Skyland-Shenandoah National Park, Va.) Recommendations to the U.S. De Recommendations to the U.S. Department of the Interior for a polar plan 1969