Birdsall, Stephen S. Outline of American geography : regional landscapes of the United States / by Stephen S. Birdsall and John Florin. - [Washington, D.C. : U.S. Dept. of State, International Information Programs, [1992] - 196 p. : col. ill. ; 21 cm. Subjects--Uniform Titles: United States geography. Subjects--Geographic Terms: United States--Description and travel. Dewey Class. No.: 910.76 / BIO