Gaya APA
Yang, H. et al (2009).
Land and water requirements of biofuel and implications for food supply and the environment in China .
London:
Elsevier Ltd..
Gaya MLA
Yang, Hong. et al.
"Land and water requirements of biofuel and implications for food supply and the environment in China".
London:
Elsevier Ltd.,
2009.
e-journal.