Elemental composition of surficial materials in the conterminous United States /
by Hansford T. Shacklette...[et al.].
-- Washington : United States Government Printing Office, 1971
- 71 p. --
(Geological Survey Professional Paper ; 574-D).
Estados Unidos
Geoquímica
550.4(78)
Estados Unidos
Geoquímica
550.4(78)