Upper Souris auto tour guide.
Contributors: U.S. Fish and Wildlife Service.
Publisher: U.S. Fish and Wildlife Service, Dept. of the Interior
Published: 1982
Place of publication: [Washington, D.C.?]
Language: eng
Subjects: Upper Souris National Wildlife Refuge (N.D.)
Notes: "Janaury 1982"--P. 4 of cover.