TY  - RPRT
TI  - Water levels and artesian pressures in the Chad Basin of northeastern Nigeria, 1963-68
AU  - S.W. Carmalt
AU  - G. Chase Tibbitts
PY  - 1969
DO  - 10.3133/ofr7261
UR  - https://pubs.usgs.gov/publication/ofr7261
ID  - ofr7261
ER  -