TY  - BOOK
AU  - Willis,Bailey
TI  - The Appalachian region: Paleozoic Appalachia, or, The history of Maryland during Paleozoic time
AV  - QE654 .W73
PY  - 1900///
CY  - Baltimore
PB  - John Hopkins press
KW  - Geology, Stratigraphic
KW  - Paleozoic
KW  - Geology
KW  - Maryland
N1  - At head of title: Maryland Geological survey; "Special publication, volume IV, part I."
ER  -