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1
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114
| Allen, E. R., and W. T. Neill. 1952. The indigo snake. Florida Wildlife 6(3):44–47. |
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2
|
8686
| Antonio, F. 2008. Eastern indigo snake studbook, Drymarchon couperi. Central Florida Zoo and Botanical Gardens, Lake Monroe, Florida, USA. 79pp. |
|
3
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9312
| Antonio, F., and R. A. Odum. 2010. Eastern indigo snake studbook Drymarchon couperi. AZA North American regional studbook, 2nd edition. Project Orianne, LTD. 59pp. |
|
4
|
6835
| Irwin, K. J., T. E. Lewis, J. D. Kirk, S. L. Collins, and J. T. Collins. 2003. Status of the eastern indigo snake (Drymarchon couperi) on St. Vincent National Wildlife Refuge, Franklin County, Florida. Journal of Kansas Herpetology No. 7:13–20. |
|
5
|
7130
| Krown, D. E. 2004. Drymarchon corais couperi, the eastern indigo snake...a natural history. Natural History Booklets Volunteer Project, Gainesville, Florida, USA. 24pp. |
|
6
|
6483
| Layne, J. N., and T. M. Steiner. 1996. Eastern indigo snake (Drymarchon corais couperi): summary of research conducted on Archbold Biological Station. Report to U.S. Fish and Wildlife Service, Jackson, Mississippi, USA. 64pp. |