In Russian. Yershov, Yuri Leonidovich. Mathematical Logic. Novosibirsk: NSU, 1973. 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. SKU7044147
In Russian. Yershov, Yuri Leonidovich. Mathematical Logic. Moscow: Science, 1979 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. SKU7623309