First ed. published in 1916 by the Classification Division of the Library of Congress, under title: Classification. Class D: Universal and Old World history. "Additions and changes to July 1965": 55 p ...
Work on a comprehensive National Vegetation Classification began in the early 1990s, when the Ecology Department of The Nature Conservancy (now with NatureServe), the Ecological Society of America ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback