Ramann, Emil, 1851-1926. Bodenkunde. Von dr. E. Ramann ... - 2. aufl ... - Berlin, J. Springer, 1905. - xii, 431, [1] p., illus. 24 cm. Bibliographical foot-notes. LCCN: agr13000744 Subjects--Topical Terms: Soils.Soil science. National Agricultural Library Call No.: 57R14