References
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- Pick , F. K. 1907 . Zur feinere Anatomie der Lunge von Halicore dugong . Arch. f. Naturgesch. , 73 : 245 – 272 . band 1
- Wislocki , George G. 1929 . On the Structure of the Lungs of the Porpoise (Tursiops truncatus) . Amer. Jour. Anat. , 44 : 47 – 71 . pls. 1–3.