http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
a field guide for the identification of the ferns, conifers, and flowering plants of the Southern Rocky Mountains from Pikes Peak to Rocky Mountain National Park and from the plains to the Continental Divide
viii, 437 pages : illustrations ; 23 cm.
1953 and 1961 edition published under title: Handbook of the plants of the Colorado Front Range.