TY  - RPRT
TI  - A Study of Roman mining and metallurgy and their environmental consequences at Plasenzuela, Extremadura, Spain
AU  - Robert G. Schmidt
AU  - Cathy M. Ager
AU  - Juan Gil Montes
PY  - 1999
DO  - 10.30861/9781841710082
UR  - https://pubs.usgs.gov/publication/70221803
ID  - 70221803
ER  -