Bei yang zheng fu tong zhi shi qi (Zhonghua shu ju, 1987)
Includes bibliographical references
Di 1 juan. 1912-1916 nian / ben juan zhu zhe Li Zongyi ... et al. (shang,xia) -- di 2 juan. 1916-1920 nian / ben juan zhu bian Peng Ming, Zhou Tiandu