认真学习无产阶级专政理论 Renzhen xuexi wuchan jieji zhuanzheng lilun Designer Li Naizhou (李乃宙) Date 1976, February Publisher Hebei renmin chubanshe (河北人民出版社) Size 77x53 cm. Call nr. BG E15/642 Collection Landsberger collection Notes Study meeting in a factory. Theme Study Theory (1975) Link to IISH catalog https://search.iisg.amsterdam/Record/1199709
