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USA | |
| Genth,F.A.,1891,The Minerals Of North Carolina |
| Bentzen III,Edwin H.,(1972) Soapstone In North Carolina |
| Bentzen III,Edwin H.,(1972) Soapstone In North Carolina |
| Bentzen III,Edwin H.,(1972) Soapstone In North Carolina |
| Bentzen III,Edwin H.,(1972) Soapstone In North Carolina |