APA
Liu X., . (2003). Policy tools for allocative efficiency of health service. World Health Organization, (s.l.): .
Chicago
Liu Xingzhu, . 2003. Policy tools for allocative efficiency of health service. World Health Organization, (s.l.): .
Harvard
Liu X., . (2003). Policy tools for allocative efficiency of health service. World Health Organization, (s.l.): .
MLA
Liu Xingzhu, . Policy tools for allocative efficiency of health service. World Health Organization, (s.l.): . 2003.