APA (7th ed.) Citation

Verga, D., & Silva, I. P. (2005). Early Cretaceous planktonic foraminifera from the Tethys. The Upper Aptian, planispiral morphotypes with elongate chambers. Cretaceous Research, 26(2), 239.

Chicago Style (17th ed.) Citation

Verga, D., and I. Premoli Silva. "Early Cretaceous Planktonic Foraminifera from the Tethys. The Upper Aptian, Planispiral Morphotypes with Elongate Chambers." Cretaceous Research 26, no. 2 (2005): 239.

MLA (9th ed.) Citation

Verga, D., and I. Premoli Silva. "Early Cretaceous Planktonic Foraminifera from the Tethys. The Upper Aptian, Planispiral Morphotypes with Elongate Chambers." Cretaceous Research, vol. 26, no. 2, 2005, p. 239.