Short description: In Russian. Kummer, Paul. A Short Guide to Defining Schreder Sheet Mosses. Kratkoe rukovodstvo k opredeleniyu listostebel'nykh mkhov. In Russian /A short guide to the definition of leaf mosses. 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. SKU4814576