TY  - SER
AU  - Simonson, R. W. and others,
TI  - Geoderma Vol. 43(1-4), Vol. 44(1-4), Vol. 45(1-4)
U1  - 631 
PY  - 1988///-89
CY  - Amsterdam
PB  - Elsevier
KW  - Soil Science
KW  - Techniques, equipment & materials
ER  -