Gómez-Rojas, O. P., Díaz-Lagos, M., Blandón-Montes, A., & Martínez-Ovalle, S. A. (2016). Presence of contamination by As Cd, As, Pb, Se, and Hg in coals of the Cundiboyacense area, Colombia. Universidad Pedagógica y Tecnológica de Colombia.
Čikaški stil citiranja (17. izdanje)Gómez-Rojas, Olga Patricia, Mercedes Díaz-Lagos, Astrid Blandón-Montes, i Segundo Agustín Martínez-Ovalle. Presence of Contamination by As Cd, As, Pb, Se, and Hg in Coals of the Cundiboyacense Area, Colombia. Universidad Pedagógica y Tecnológica de Colombia, 2016.
MLA način citiranja (9. izdanje)Gómez-Rojas, Olga Patricia, et al. Presence of Contamination by As Cd, As, Pb, Se, and Hg in Coals of the Cundiboyacense Area, Colombia. Universidad Pedagógica y Tecnológica de Colombia, 2016.
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