| Brown, A.E., 1905. Guide to the garden of the zoological society of Philadelphia (Fair mount park), 9th edition, revised and corrected. Philadelphia, Zoological Society
|
|
| Brown, A.E., 1886. Guide to the garden of the zoological society of Philadelphia (Fair mount park). Philadelphia
|
|
| Brown, A.E., 1880. Guide to the garden of the zoological society of Philadelphia (Fair mount park), 2nd edition. Philadelphia, Zoological Society
|
|
| Brown, A.E., 1878. Guide to the garden of the zoological society of Philadelphia (Fair mount park). Philadelphia, Zoological Society
|
|
|