Clack, J. A. (1994). Acanthostega gunnari, a Devonian tetrapod from Greenland: The snout, palate and ventral parts of the braincase, with a discussion of their significance. Geografforl.
Chicago-Zitierstil (17. Ausg.)Clack, Jennifer A. Acanthostega Gunnari, a Devonian Tetrapod from Greenland: The Snout, Palate and Ventral Parts of the Braincase, with a Discussion of Their Significance. Brenderup: Geografforl, 1994.
MLA-Zitierstil (9. Ausg.)Clack, Jennifer A. Acanthostega Gunnari, a Devonian Tetrapod from Greenland: The Snout, Palate and Ventral Parts of the Braincase, with a Discussion of Their Significance. Geografforl, 1994.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.