APA (7th ed.) Citation

Ausich, W. I., & Sevastopulo, G. D. (2001). The Lower Carboniferous (Tournaisian) crinoids from Hook Head, County Wexford, Ireland. Palaeontographical Soc.

Chicago Style (17th ed.) Citation

Ausich, William I., and George D. Sevastopulo. The Lower Carboniferous (Tournaisian) Crinoids from Hook Head, County Wexford, Ireland. London: Palaeontographical Soc, 2001.

MLA (9th ed.) Citation

Ausich, William I., and George D. Sevastopulo. The Lower Carboniferous (Tournaisian) Crinoids from Hook Head, County Wexford, Ireland. Palaeontographical Soc, 2001.