TY  - RPRT
TI  - Lower Llandovery of the northern Appalachians and adjacent regions
AU  - William G. Ayrton
AU  - William B. N. Berry
AU  - Arthur J. Boucot
AU  - Jean Lajoie
AU  - Pierre J. Lesperance
AU  - Louis Pavlides
AU  - W. Brian Skidmore
PY  - 1969
DO  - 10.1130/0016-7606(1969)80[459:llotna]2.0.co;2
UR  - https://pubs.usgs.gov/publication/70225066
ID  - 70225066
ER  -