Olierook, H., Jourdan, F., & Merle, R. (2019). Age of the Barremian–Aptian boundary and onset of the Cretaceous Normal Superchron.
Chicago Style (17th ed.) CitationOlierook, Hugo, Fred Jourdan, and Renaud Merle. Age of the Barremian–Aptian Boundary and Onset of the Cretaceous Normal Superchron. 2019.
MLA (9th ed.) CitationOlierook, Hugo, et al. Age of the Barremian–Aptian Boundary and Onset of the Cretaceous Normal Superchron. 2019.
Warning: These citations may not always be 100% accurate.