A geognostical essay on the superposition of rocks, in both hemispheres [microform] /
Humboldt, Alexander von,1769-1859.
London : Longman, Hurst, Rees, Orme, Brown, and Green,
1823.
Includes bibliographical references (p. [478]-482)
Sabin 33712
Microfiche.
Geology, Structural.
Geology, Stratigraphic.