TY  - RPRT
TI  - One person's story about three decades of his research on igneous rocks
AU  - W. A. Duffield
PY  - 1998
DO  - 10.1016/s0377-0273(98)00072-9
UR  - https://pubs.usgs.gov/publication/70020277
ID  - 70020277
ER  -