节能科普挂图 Jieneng kepu guatu Designer Wang Yaonan (王耀南) Date 1981 Publisher Kexue puji chubanshe (科学普及出版社) Size 77x53 cm. Call nr. BG E37/642 Collection Landsberger collection Notes Opening sheet of the series Energy conservancy science popularization wall charts (节能科普挂图), published in 1981. Theme Environment
