Author
Philadelphia Zoological Garden
3
Claws 'N' Paws Wild Animal Park, Inc
2
Audubon Park and Zoological Garden (New Orleans, La.)
1
Cape May County Park Commission
1
Cohanzick Zoo (Bridgeton, N.J.)
1
Conant, Roger, 1909-2003
1
DeLeon, Clark, 1949-
1
Elmwood Park Zoo
1
Hull
1
Lake Tobias Wildlife Park
1
Lincoln Park Zoo
1
London Zoo (London, England)
1
Mitchell, David William
1
Newkirk, Pamela,
1
Penn's Cave
1
Pocono Snake & Animal Farm
1
Rinard, Judith E.
1
Sclater, Philip Lutley, 1829-1913
1
Weaver, Stephanie, 1961-
1
Zoological Society of Philadelphia
1