Song, S. (2012). Does famine influence sex ratio at birth? Evidence from the 1959–1961 Great Leap Forward Famine in China. The Royal Society.
استشهاد بنمط شيكاغوSong, Shige. Does Famine Influence Sex Ratio At Birth? Evidence From the 1959–1961 Great Leap Forward Famine in China. The Royal Society, 2012.
MLA استشهادSong, Shige. Does Famine Influence Sex Ratio At Birth? Evidence From the 1959–1961 Great Leap Forward Famine in China. The Royal Society, 2012.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.