我们一定要攻占科学堡垒 Women yiding yao gongzhan kexue baolei Designer You Longgu (游龙姑) Date 1955, July Publisher Shanghai renmin meishu chubanshe (上海人民美术出版社) Size 52x77 cm. Call nr. BG E37/844 Collection Landsberger collection Notes This is a print from the second impression (February 1957). Link to IISH catalog https://search.iisg.amsterdam/Record/1507324
