In Russian. Slavinsky, David Mikhailovich. The Problem of Development and Implementation of Effective Structures of Refractory Columns. Moscow: 1971. Problema razrabotki i vnedreniya effektivnykh konstruktsiy rektifikatsionnykh kolonn. In Russian /The Problem of Developing and Implementing Effective Structures of Refractory Columns . All images are for identification of editions only. Several books of the same edition may be available. Please feel free to request photos of available books. SKU7447575