APA-Zitierstil (7. Ausg.)

Welles, S. P., & Estes, R. (1969). Hadrokkosaurus bradyi from the upper Moenkopi formation of Arizona: With a review of the brachyopid labyrinthodonts. Univ. of California Press.

Chicago-Zitierstil (17. Ausg.)

Welles, Samuel Paul, und Richard Estes. Hadrokkosaurus Bradyi from the Upper Moenkopi Formation of Arizona: With a Review of the Brachyopid Labyrinthodonts. Berkeley [u.a.]: Univ. of California Press, 1969.

MLA-Zitierstil (9. Ausg.)

Welles, Samuel Paul, und Richard Estes. Hadrokkosaurus Bradyi from the Upper Moenkopi Formation of Arizona: With a Review of the Brachyopid Labyrinthodonts. Univ. of California Press, 1969.