Gaya APA

Liu, J. et al (2009). Ce-promoted Ru/SBA-15 catalysts prepared by a ‘‘two solvents’’ impregnation method for selective hydrogenation of benzene to cyclohexene . London: Elsevier B.V..

Gaya MLA

Liu, Jian-Liang. et al. "Ce-promoted Ru/SBA-15 catalysts prepared by a ‘‘two solvents’’ impregnation method for selective hydrogenation of benzene to cyclohexene". London: Elsevier B.V., 2009. e-journal.