打井现场会 Dajing xianchanghui Designer Zhou Dazheng (周大正) Date 1974 Publisher Gansu renmin chubanshe (甘肃人民出版社) Size 54x75 cm. Call nr. BG E15/745 Collection Landsberger collection Theme Criticize Lin Biao and Confucius (1974) Dazhai
