APA (7th ed.) Citation

Barragán, R., & Maurrasse, F. J. R. (2018, January). Lower Aptian (Lower Cretaceous) ammonites from the basal strata of the La Peña Formation of Nuevo León State, northeast Mexico: Biochronostratigraphic implications. Revista Mexicana de Ciencias Geológicas.

Chicago Style (17th ed.) Citation

Barragán, Ricardo, and Florentin J-M. R. Maurrasse. "Lower Aptian (Lower Cretaceous) Ammonites from the Basal Strata of the La Peña Formation of Nuevo León State, Northeast Mexico: Biochronostratigraphic Implications." Revista Mexicana De Ciencias Geológicas Jan. 2018.

MLA (9th ed.) Citation

Barragán, Ricardo, and Florentin J-M. R. Maurrasse. "Lower Aptian (Lower Cretaceous) Ammonites from the Basal Strata of the La Peña Formation of Nuevo León State, Northeast Mexico: Biochronostratigraphic Implications." Revista Mexicana De Ciencias Geológicas, Jan. 2018.