APA-Zitierstil (7. Ausg.)

Welles, S. P. (1962). A new species of elasmosaur from the Aptian of Colombia and a review of the cretaceous plesiosaurs. Univ. of California Press.

Chicago-Zitierstil (17. Ausg.)

Welles, Samuel Paul. A New Species of Elasmosaur from the Aptian of Colombia and a Review of the Cretaceous Plesiosaurs. Berkeley [u.a.]: Univ. of California Press, 1962.

MLA-Zitierstil (9. Ausg.)

Welles, Samuel Paul. A New Species of Elasmosaur from the Aptian of Colombia and a Review of the Cretaceous Plesiosaurs. Univ. of California Press, 1962.