Soil science simplified /
Harpstead, Milo I.,
Soil science simplified / Milo I. Harpstead, Thomas J. Sauer, William F. Bennett ; illustrated by Mary C. Bratz. - 4th ed. - Ames : Iowa State University Press, 2001. - vii, 225 p. : ill., maps ;
Includes index.
0813829429 (alk. paper)
Soil science.
S591 / .H28 2001
Soil science simplified / Milo I. Harpstead, Thomas J. Sauer, William F. Bennett ; illustrated by Mary C. Bratz. - 4th ed. - Ames : Iowa State University Press, 2001. - vii, 225 p. : ill., maps ;
Includes index.
0813829429 (alk. paper)
Soil science.
S591 / .H28 2001