TY  - BOOK
AU  - Lyell,Charles,Sir,1797-1875
TI  - Principles of geology: being an attempt to explain the former changes of the earths surface by reference to causes now in operation
PY  - 1969///
CY  - New York
PB  - Johnson Reprint Corporation
KW  - Geology
N1  - Reprint of the 1830-33 ed; Includes bibliographical references
ER  -