试验田 Shiyan tian Designer Song Renliang (宋仁梁) Song Renxian (宋仁贤) Date 1975, June Publisher Renmin meishu chubanshe (人民美术出版社) Size 53x77 cm. Call nr. BG E13/961 Collection Landsberger collection Link to IISH catalog https://search.iisg.amsterdam/Record/1057484
