Ramann, E.
The evolution and classification of soils / by E. Ramann ; translated by C. L. Whittles. - Cambridge : W. Heffer, 1928. - xii, 127 p.
Soils--Classification.
Soil science.
/ 631.4
The evolution and classification of soils / by E. Ramann ; translated by C. L. Whittles. - Cambridge : W. Heffer, 1928. - xii, 127 p.
Soils--Classification.
Soil science.
/ 631.4