@book{Hu-etal90,
  author	= {Hu, Zhuanglin and Zhu, Yongsheng and Zhang, Delu},
  year		= {1990},
  title		= {Systemic-Functional Grammar},
  note		= {(In Chinese)},
  publisher	= {Hunan Educational Publishers},
  address	= {Hunan, P.R. China}
}