The economic destiny of the National parks.
McFarland, J. Horace (John Horace), 1859-1948.
United States. National Park Service.
text
Washington, Govt. print. off.,
1917.
eng
National park conference. [from old catalog]
National parks and reserves--United States.
Also available in digital form.
http://hdl.loc.gov/loc.gdc/scd0001.00112916489