Ecoregions map of North America : explanatory note / prepared in cooperation with the Nature Conservancy and the U.S. Geological Survey ; by Robert G. Bailey.
[Washington, DC?] : U.S. Dept. of Agriculture, Forest Service, [1998]
Format:
Book
ii, 10 p. : col. ill. ; 28 cm. + 1 folded map in pocket.
Title Variation:
Ecoregions of North America
Note:
"This publication explains the basis of map units shown on the second (revised) edition of the map, Ecoregions of North America (Bailey 1997)"--P. ii.
"May 1998."
"Lambert azimuthal equal area"--Map.