TY  - RPRT
TI  - Spirit leveling in Texas. Part 1, Western Texas, 1896-1935
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1937
DO  - 10.3133/b883a
UR  - https://pubs.usgs.gov/publication/b883A
ID  - b883A
ER  -