TY  - RPRT
TI  - Water resources data, Pennsylvania, water year 1991. Volume 1. Delaware River Basin
AU  - J.R. Kolva
AU  - T.E. White
AU  - R.L. Druther
AU  - P. Moleski
PY  - 1993
DO  - 10.3133/wdrpa911
UR  - https://pubs.usgs.gov/publication/wdrPA911
ID  - wdrPA911
ER  -