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Ralph (1930). "The
liebespiel of
Testudo vandenburghi, a new name for the mid-Albemarle
Island Galápagos...
- 2018: e.T9027A144766471.
Retrieved 14
February 2020.
DeSola 1930. The
Liebespiel of
Testudo vandenburghi, a new name for the mid-Albemarle
Island Galápagos...