Gu du ji kun : Beiping she hui jiu zhu yan jiu (1928-1937) = Relief in Peiping : the study on social assistance in Peiping (1928-1937) / Liu Rongzhen zhu.
故都济困 : 北平社会救助研究 (1928-1937) = Relief in Peiping : the study on social assistance in Peiping (1928-1937) / 刘荣臻著.