TY  - RPRT
TI  - Lower Devonian graptolites from southeastern Alaska
AU  - Michael Churkin
AU  - Herman Jaeger
AU  - G. Donald Eberlein
PY  - 1970
DO  - 10.1111/j.1502-3931.1970.tb01857.x
UR  - https://pubs.usgs.gov/publication/70226469
ID  - 70226469
ER  -