Espinoza-Audelo, L. F. (2020). Current situation of competitiveness and sustainability and COVID-19. Unidad Editorial UPTC.
芝加哥风格引文Espinoza-Audelo, Luis Fernando. Current Situation of Competitiveness and Sustainability and COVID-19. Unidad Editorial UPTC, 2020.
MLA引文Espinoza-Audelo, Luis Fernando. Current Situation of Competitiveness and Sustainability and COVID-19. Unidad Editorial UPTC, 2020.
警告：这些引文格式不一定是100％准确.
