Pickrell, J., Currie, P., & Creative, X. (2014). Flying dinosaurs: How fearsome reptiles became birds. Columbia University Press.
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Chicago-čujuhus (17. p.)
Pickrell, John, Philip Currie, juo Xou Creative. Flying Dinosaurs: How Fearsome Reptiles Became Birds. New York ; Chichester, England: Columbia University Press, 2014.
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MLA-čujuhus (9. p.)
Pickrell, John, et al. Flying Dinosaurs: How Fearsome Reptiles Became Birds. Columbia University Press, 2014.
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