Gaya APA

Xiao, B., Liu, J. (2009). Biological hydrogen production from sterilized sewage sludge by anaerobic self-fermentation . London: Elsevier B.V..

Gaya MLA

Xiao, Benyi., Liu, Junxin. "Biological hydrogen production from sterilized sewage sludge by anaerobic self-fermentation". London: Elsevier B.V., 2009. e-journal.