TY  - RPRT
TI  - Gravity map of the Trinidad quadrangle, Colorado: A contribution to the Upper Mantle Project
AU  - D. L. Peterson
AU  - Peter Popenoe
AU  - J. R. Gaca
AU  - D. E. Karig
PY  - 1968
DO  - 10.3133/gp638
UR  - https://pubs.usgs.gov/publication/gp638
ID  - gp638
ER  -