Cita APA

Sá, A. A., Gutiérrez-Marco, J. C., Piçarra, J. M., García-Bellido, D., Vaz, N., & Aceñolaza, G. F. (2011). Ordovician vs. “Cambrian” ichnofossils in the Armorican Quartzite of Central Portugal.

Citación estilo Chicago

Sá, Artur A., J. C. Gutiérrez-Marco, José Manuel Piçarra, Diego García-Bellido, N. Vaz, y Guillermo F. Aceñolaza. Ordovician Vs. “Cambrian” Ichnofossils in the Armorican Quartzite of Central Portugal. 2011.

Cita MLA

Sá, Artur A., et al. Ordovician Vs. “Cambrian” Ichnofossils in the Armorican Quartzite of Central Portugal. 2011.