Thomson, Betty Flanders, 1913- The shaping of America's heartland : : the landscape of the Middle West / [electronic resource] / by Betty Flanders Thomson.. — Boston : : Houghton Mifflin,, 1977.. — xvi, 267 p. : : ill. ; 24 cm. - The Naturalist's America.

Includes bibliographical references and index.



ISBN: 0395247608 9780395247600

LCCN: 77009325

Subjects--Topical Terms:
Landforms--Middle West.
Plant ecology--Middle West.
Hydrology--Middle West.

LC Class. No.: GB428.M52 / T46

Dewey Class. No.: 551.4/0977