Short description: In Russian. Zaznobina, Lyudmila Semenovna. On-screen aids in chemistry lessons. Moscow: Enlightenment, 1977. Ekrannye posobiya na urokakh khimii. In Russian /On-screen aids in chemistry lessons. The image is provided for reference only. It may reflect condition of one of the available copies or only help in identifying the edition. Please feel free to contact us for a detailed description of the copies available. SKU7646640