20 Years'development of the western region 并列题名：20 Years'development of the western region 20 years' development of China's western regions 并列题名：20 years' development of China's western regions Human resources and development of the western region 并列题名：Human resources and development of the western region Grand-Scale Development of China's Western Region Study of the Huns' management of the western regions 并列题名：Grand-Scale Development of China's Western Region Road to Grand-Scale Development of China's Western Region