12743
12744
12760
Keys to soil taxonomy
]Washington, D.C.[
United States Dept. of Agriculture, Soil Conservation Service
1994
iv, 306p
"This volume includes all revisions of the keys that have so far been approved, replacing the original keys in Soil taxonomy, a basic system of soil classification...]1975[, the work on which this abridged version, first published 1983 is based"-P. ii
Includes bibliographical references and index
by Soil Survey Staff
6th ed
Classification ، Soils
S
592
.
16
.
K49
1994
TI
CO United States. Soil Conservation Service
CO Soil taxonomy
CL
CL
CL.نوجی
