Soil testing : sampling, correlation, calibration and interpretation /
by J.R. Brown.
- Madison : Soil Science Society of America ; c1987.
- ix, 144 p. : ill. ; 24cm.
includes biographical references.
0891187847
soils-analysis.
631.422 / BRS
includes biographical references.
0891187847
soils-analysis.
631.422 / BRS