TY  - RPRT
TI  - Coal deposits of the Santa Clara district, near Tonichi, Sonora, Mexico
AU  - Ivan Franklin Wilson
AU  - Victor S. Rocha
PY  - 1949
DO  - 10.3133/b962a
UR  - https://pubs.usgs.gov/publication/b962A
ID  - b962A
ER  -