47870

S

592.16

.K49

1994

by Soil Survey Staff

6th ed

United States Dept. of Agriculture, Soil Conservation Service,

1994

iv, 306 p. ; 28 cm

"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