Denyer, P., Aguilar, T., Rodríguez, E., Trejos-Tamayo, R., Barrantes, M., & Sandoval, M. I. (2024). Tranquerillas black shales: Peña Negra Formation of Middle Miocene, Costa Rica.
Čikaški stil citiranjaDenyer, Percy, Teresita Aguilar, Erick Rodríguez, Raúl Trejos-Tamayo, Manuel Barrantes, i María I. Sandoval. Tranquerillas Black Shales: Peña Negra Formation of Middle Miocene, Costa Rica. 2024.
MLA način citiranjaDenyer, Percy, et al. Tranquerillas Black Shales: Peña Negra Formation of Middle Miocene, Costa Rica. 2024.
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