Report of the River Master of the Delaware River for the period December 1, 1997 to November 30, 1998, with a section on water quality
Explore the source record for details and available documents.
Open-File Report↗
Geology topics
William E. Harkness
Publications and source records attributed to William E. Harkness.
Report of the River Master of the Delaware River for the period December 1, 1986-November 30, 1987, with a section on water quality
Explore the source record for details and available documents.
Open-File Report↗