Occurrence and nature of carbonized material in soils.
Schreiner, Oswald, 1875-
Occurrence and nature of carbonized material in soils. By Oswald Schreiner ... and B.E. Brown ... - Washington, Govt. print. off., 1912. - 28 p. VII pl. on 4 l. 23 cm.
agr13000003
Soils--Analysis.
S591 / .A12 no. 90
Occurrence and nature of carbonized material in soils. By Oswald Schreiner ... and B.E. Brown ... - Washington, Govt. print. off., 1912. - 28 p. VII pl. on 4 l. 23 cm.
agr13000003
Soils--Analysis.
S591 / .A12 no. 90