TY  - CHAP
A1  - Lea, I.
DO  - 10.5962/bhl.title.18987
N1  - exact publication date not researched, but preface is dated 1 November 1833
C1  - Carey, Lea and Blanchard, Philadelphia, 227 pp. + 6 pls.
TI  - Contributions to Geology
UR  - https://www.biodiversitylibrary.org/page/17592495
PY  - 1833
Y2  - 2026-10-12
ER  -