Gaya APA

Xie, W. et al (2007). Catalytic Properties of Lithium-Doped ZnO Catalysts Used for Biodiesel Preparations . Washington, DC: American Chemical Society.

Gaya MLA

Xie, Wenlei. et al. "Catalytic Properties of Lithium-Doped ZnO Catalysts Used for Biodiesel Preparations". Washington, DC: American Chemical Society, 2007. e-journal.