TY  - RPRT
TI  - A special issue devoted to massive sulfide deposits of the Appalachian-Caledonian orogen. Preface.
AU  - J. E. Gair
AU  - F.M. Vokes
PY  - 1984
UR  - https://pubs.usgs.gov/publication/70013964
ID  - 70013964
ER  -