TY  - RPRT
TI  - Zircon from a bentonite bed in Martinsburg shale (Ordovician) at Fisher's Hill, Virginia
AU  - Dorothy Carroll
PY  - 1959
DO  - 10.1130/0016-7606(1959)70[223:zpabbi]2.0.co;2
UR  - https://pubs.usgs.gov/publication/70211662
ID  - 70211662
ER  -