http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
2 volumes, xiv, 997 pages, 14 unnumbered folded leaves of plates : illustrations, maps (some color) ; 24 cm.
by Raphael Zon and William N. Sparhawk ; with a foreword by Gifford Pinchot.
"Prepared under the authority of the Secretary of Agriculture of the United States and in cooperation with the National Research Council."