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Record Source:
Published Materials
Journal
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Record Source:
Published Materials
Journal
4
Subjects and Genres: ';
“...Natural history Penn. Pennypack Creek Watershed....”
Book
5
Published 1960
Subjects and Genres: ';
“...Water-supply Delaware River watershed....”
Record Source:
Published Materials
Book
6
Subjects and Genres: ';
“...Water conservation Pennsylvania Brandywine Creek Watershed....”
Book
7
Subjects and Genres: ';
“...Watersheds Northeastern States....”
Book
8
Published 2020
Subjects and Genres: ';
“...Alliance for Watershed Education of the Delaware River....”
Record Source:
Published Materials
9
Subjects and Genres: ';
“...Pennypack Creek Watershed (Pa.)...”
Electronic
10
Record Source:
Digital Records
Electronic
11
Published 1975
Subjects and Genres: ';
“...Water resources development Delaware River Watershed (N.Y.-Del. and N.J.)....”
Record Source:
Published Materials
Book
12
Record Source:
Published Materials
Serial
13
Published 1941
Subjects and Genres: ';
“...Water Pollution Delaware River Watershed (N.Y.-Del.and N.J....”
Record Source:
Published Materials
Book
14
Subjects and Genres: ';
“...Water quality New Jersey Toms River Watershed....”
Book
15
16
Published 1939
Subjects and Genres: ';
“...Water-supply Delaware River Watershed (N.Y.-Del. and N.J....”
Record Source:
Published Materials
Book
17
Published 1953
“...Delaware River Watershed (N.Y.-Del. and N.J.)...”
Record Source:
Published Materials
Book
18
Published 2012
“...Delaware River Watershed (N.Y.-Del. and N.J.)...”
Record Source:
Published Materials
Book
19
Author:
Fisher, Allan C.
“...Potomac River Watershed History....”
Record Source:
Published Materials
Book
20
Published 2012
“...Delaware River Watershed (N.Y.-Del. and N.J.)...”
Record Source:
Published Materials