Sánchez Estrada, J. S. (2021). Methodology for the mitigation of risks in the improvement of tertiary roads in Cundinamarca, Colombia. Universidad Pedagógica y Tecnológica de Colombia - UPTC.
Chicago-čujuhus (17. p.)Sánchez Estrada, Juan Sebastián. Methodology for the Mitigation of Risks in the Improvement of Tertiary Roads in Cundinamarca, Colombia. Universidad Pedagógica y Tecnológica de Colombia - UPTC, 2021.
MLA-čujuhus (9. p.)Sánchez Estrada, Juan Sebastián. Methodology for the Mitigation of Risks in the Improvement of Tertiary Roads in Cundinamarca, Colombia. Universidad Pedagógica y Tecnológica de Colombia - UPTC, 2021.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.