Rezultati

1

Fragments of the natural history of Pennsylvania. /

Fragments of the natural history of Pennsylvania. /

od Barton, Benjamin Smith, 1766-1815.
Izdano 1799

Electronic resource from Early American Imprints

eKnjiga

2

The birds of Pennsylvania /

The birds of Pennsylvania /

od McWilliams, Gerald M.
Izdano 2000

Electronic book from JSTOR

eKnjiga

3

The view from Hawk Mountain /

The view from Hawk Mountain /

od Harwood, Michael, 1933 or 1934-1989.
Izdano 1973

Knjiga

4

Pennsylvania birds : an annotated list /

Pennsylvania birds : an annotated list /

od Poole, Earl L.
Izdano 1965

Knjiga

5

Report on the birds of Pennsylvania ; with special reference to the food habits, based on over four thousand stomach examinations /

Report on the birds of Pennsylvania ; with special reference to the food habits, based on over four thousand stomach examinations /

Izdano 1890

Knjiga

6

The Wissahickon hills ; memories of leisure hours out of doors in an old countryside /

The Wissahickon hills ; memories of leisure hours out of doors in an old countryside /

od Weygandt, Cornelius, 1871-1957.
Izdano 1931

Knjiga

7

Hawks aloft : the story of Hawk Mountain.

Hawks aloft : the story of Hawk Mountain.

od Broun, Maurice, 1906-1979.
Izdano 1949

Knjiga

8

The birds of Pennsylvania /

The birds of Pennsylvania /

od McWilliams, Gerald M.
Izdano 2000

Knjiga

9

Avian ecology and conservation : a Pennsylvania focus with national implications /

Avian ecology and conservation : a Pennsylvania focus with national implications /

Izdano 2010

Knjiga

10

Pennsylvania birds

Pennsylvania birds

Izdano 1987

Full text available in EBSCO Open Access Journals: 1987 - 2021

Elektronski Revija Serijska publikacija

11

A field list of the birds of Lehigh County /

A field list of the birds of Lehigh County /

od Morris, Bernard L.
Izdano 1979

Knjiga

12

Bulletin /

Izdano 1911

Revija Serijska publikacija