TY  - BOOK
AU  - Shacklette,Hansford T.
ED  - United States
TI  - Elemental composition of surficial materials in the conterminous United States
U1  - 551.90973 
PY  - 1971///.
CY  - Washington: 
PB  - United States Government Printing Office, 
KW  - Geochemistry
KW  - United States
KW  - Soils
KW  - Composition
N1  - Includes bibliographical references (p. D7-D8)
N2  - An account of the amounts of certain chemical elements in samples of soils and other regoliths
ER  -