Becerra-Becerra, J. E., & Costa, A. G. (2008). Use specifications of ornamental rocks based in accelerated ageing tests. Universidad Pedagógica y Tecnológica de Colombia - UPTC.
芝加哥风格引文Becerra-Becerra, Javier Eduardo, 与 Antonio Gilberto Costa. Use Specifications of Ornamental Rocks Based in Accelerated Ageing Tests. Universidad Pedagógica y Tecnológica de Colombia - UPTC, 2008.
MLA引文Becerra-Becerra, Javier Eduardo, 与 Antonio Gilberto Costa. Use Specifications of Ornamental Rocks Based in Accelerated Ageing Tests. Universidad Pedagógica y Tecnológica de Colombia - UPTC, 2008.
警告：这些引文格式不一定是100％准确.
