APA (7th ed.) Citation

Sá, A. A., Piçarra, J. M., Gutiérrez-Marco, J. C., & Sarmiento, G. N. (2010). P-rich nodules and hollow graptolites in the upper Silurian of the Moncorvo synclinorium, north Portugal.

Chicago Style (17th ed.) Citation

Sá, Artur Abreu, José Manuel Piçarra, Juan Carlos Gutiérrez-Marco, and Graciela Noemi Sarmiento. P-rich Nodules and Hollow Graptolites in the Upper Silurian of the Moncorvo Synclinorium, North Portugal. 2010.

MLA (8th ed.) Citation

Sá, Artur Abreu, et al. P-rich Nodules and Hollow Graptolites in the Upper Silurian of the Moncorvo Synclinorium, North Portugal. 2010.