APA (7th ed.) Citation

Unwin, D. M., Lü, J., & Bakhurina, N. N. (2000). On the systematic and stratigraphic significance of pterosaurs from the Lower Cretaceous Yixian Formation (Jehol Group) of Liaoning, China. Pensoft Publishers.

Chicago Style (17th ed.) Citation

Unwin, D. M., J. Lü, and N. N. Bakhurina. On the Systematic and Stratigraphic Significance of Pterosaurs from the Lower Cretaceous Yixian Formation (Jehol Group) of Liaoning, China. Pensoft Publishers, 2000.

MLA (9th ed.) Citation

Unwin, D. M., et al. On the Systematic and Stratigraphic Significance of Pterosaurs from the Lower Cretaceous Yixian Formation (Jehol Group) of Liaoning, China. Pensoft Publishers, 2000.