TY  - RPRT
TI  - Maps showing distribution, composition, and age of early and middle Cenozoic volcanic centers in Arizona, New Mexico, and west Texas
AU  - R. G. Luedke
PY  - 1993
DO  - 10.3133/i2291a
UR  - https://pubs.usgs.gov/publication/i2291A
ID  - i2291A
ER  -