TY  - RPRT
TI  - Instructions for using the punchcard system for the storage and retrieval of ground-water data. (NOTE: This publication is no longer maintained, USGS Library still has a copy)
AU  - Solomon Max Lang
AU  - Alvin Riley Leonard
PY  - 1967
DO  - 10.3133/twri07a
UR  - https://pubs.usgs.gov/publication/twri07A
ID  - twri07A
ER  -