Fleischer, Michael, 1908- Recent estimates of the abundances of the elements in the earth's crust. - Washington, 1953. - 7 p. diagrs., tables, 27 cm. - Geological Survey circular 285 . "Reference for tables 2 and 3": p. 3. LCCN: gs 53000348 Subjects--Topical Terms: Chemical elements.Geochemistry. LC Class. No.: QE75 / .C5 no. 285 Dewey Class. No.: 553