Gaya APA

Zhang, G. et al (2008). The surface analytical characterization of carbon fibers functionalized by H2SO4/HNO3 treatment . London: Elsevier Ltd..

Gaya MLA

Zhang, Gaixia. et al. "The surface analytical characterization of carbon fibers functionalized by H2SO4/HNO3 treatment". London: Elsevier Ltd., 2008. e-journal.