1
Author: Peterson, Edwin L.
Published 1958
Record Source: Published Materials
Subjects and Genres: '; ...Natural history Pennsylvania....
Book
2
Published 2000
Record Source: Published Materials
Subjects and Genres: '; ...Natural history Pennsylvania....
3
Published 2000
Record Source: Published Materials
Subjects and Genres: '; ...Natural history Pennsylvania....
4
Published 1980
Record Source: Published Materials
Subjects and Genres: '; ...Natural history Pennsylvania....
5
6
Author: Davis, W. W. H. 1820-1910.
Published 1905
Record Source: Published Materials
Subjects and Genres: '; ...Natural history Pennsylvania Bucks County....
Book
7
Published 2011
Record Source: Published Materials
Subjects and Genres: '; ...Natural history Pennsylvania Philadelphia History 18t...
Book
8
Author: Barton, Benjamin Smith, 1766-1815.
Published 1883
Record Source: Published Materials
Subjects and Genres: '; ...Natural history Pennsylvania....
Book
9
Author: Barton, Benjamin Smith, 1766-1815.
Published 1799
Record Source: Published Materials
Subjects and Genres: '; ...Natural history Pennsylvania....
Book
10
Published 1988
Record Source: Published Materials
Subjects and Genres: '; ...Natural history Pennsylvania....
Book
11
Subjects and Genres: '; ...Natural history Pennsylvania....
Book
12
Author: Gadomski, Michael P.,
Published 2013
Record Source: Published Materials
Subjects and Genres: '; ...Natural history Pennsylvania....
Book
13
Record Source: Published Materials
Subjects and Genres: '; ...Natural history Pennsylvania Philadelphia Periodicals....
Journal
14
Author: Bonta, Marcia, 1940-
Published 1999
Record Source: Published Materials
Subjects and Genres: '; ...Natural history Pennsylvania....
Book
15
Author: Bastian, Scott F.
Published 2002
Record Source: Published Materials
Subjects and Genres: '; ...Natural history Pennsylvania Somerset County Pictorial works....
Book
16
Author: Grove, Victor.
Record Source: Published Materials
Subjects and Genres: '; ...Natural history Pennsylvania Philadelphia Region Guidebo...
Book
17
Author: Wildman, Edward Embree, 1874-1956.
Published 1944
Record Source: Published Materials
Subjects and Genres: '; ...Natural history Pennsylvania....
Book
18
Author: Osborne, Peter.
Published 2017
Record Source: Published Materials
Subjects and Genres: '; ...Natural history Pennsylvania Philadelphia Region Guidebooks....
Book
19
Author: Whiteford, Richard.
Published 2006
Record Source: Published Materials
Subjects and Genres: '; ...Natural history Pennsylvania....
Table of contents
Contributor biographical information
Publisher description
Book
20
Author: Formigli, Donald.
Published 2017
Record Source: Published Materials
Subjects and Genres: '; ...Natural history Pennsylvania Philadelphia Region Guidebooks....
Book