Geology and earth sciences sourcebook for elementary and secondary schools. [electronic resource] / Robert L. Heller, editor. Prepared under the guidance of the American Geological Institute, National Academy of Sciences-National Research Council.. — New York, : Holt, Rinehart and Winston, [1962]. — 496 p. : illus. 23 cm.

Held on the Duluth campus of the University of Minnesota.



LCCN: 62010549

Subjects--Topical Terms:
Geology--Study and teaching.

LC Class. No.: QE41 / .A55

Dewey Class. No.: 550.7