Herrera Carvajal, D. A., Rincón Bayona, J. E., & Sánchez, S. M. (2021). Behavior of the inorganic chemistry of bituminous coals in the Checua - Lenguazaque syncline. Universidad Pedagógica y Tecnológica de Colombia - UPTC.
Lua i Stíl Chicago (17ú heag.)Herrera Carvajal, David Alejandro, John Elkin Rincón Bayona, agus Sandra Manosalva Sánchez. Behavior of the Inorganic Chemistry of Bituminous Coals in the Checua - Lenguazaque Syncline. Universidad Pedagógica y Tecnológica de Colombia - UPTC, 2021.
Lua MLA (9ú heag.)Herrera Carvajal, David Alejandro, et al. Behavior of the Inorganic Chemistry of Bituminous Coals in the Checua - Lenguazaque Syncline. Universidad Pedagógica y Tecnológica de Colombia - UPTC, 2021.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
