Lu, J., & Liu, Q. (2019). Four decades of studies on population aging in China.
芝加哥风格引文Lu, Jiehua, 与 Qin Liu. Four Decades of Studies on Population Aging in China. 2019.
MLA引文Lu, Jiehua, 与 Qin Liu. Four Decades of Studies on Population Aging in China. 2019.
警告：这些引文格式不一定是100％准确.