Proceedings of the National Park Conference Held at the Yellowstone National Park, September 11 and 12, 1911
National Park Service (ed). 1912. Proceedings of the National Park Conference Held at the Yellowstone National Park, September 11 and 12, 1911. Yellowstone National Park. September 11 and 12, 1911. National Park Service. Government Printing Office, Washington D.C.
The purpose of the conference was to consider all the questions that arise in the administration of these reservations in order that the department might be able to make such changes in the regulations and to foster such development as might be for the best interest of the public.