Description of the ecoregions of the United States
By: compiled by Robert G. Bailey ; prepared in cooperation with the U.S. Fish and Wildlife Service for use with the map Ecoregions of the United States.
Contributors: U.S. Fish and Wildlife Service.
Publisher: Forest Service, U.S. Dept. of Agriculture
Published: 1978
Place of publication: Ogden, Utah
Language: eng
Number of pages: 77
Subjects: Ecological regions -- United States.; Ecology -- United States.
Other titles: Ecoregions of the United States.
Notes: Bibliography: p. 69-72.