以实际行动回答“四年、五年总可以了吧”！ Yi shiji xingdong huida "sinian, wunian zong keyile ba"! Designer Ding Jiansheng (丁健生) Date 1974, February Publisher Shanxi renmin chubanshe (山西人民出版社) Size 54x78 cm. Call nr. BG E37/304 Collection Landsberger collection Theme Dazhai Link to IISH catalog https://search.iisg.amsterdam/Record/1456987
