Early American soil conservationists /

McDonald, Angus Henry, 1903-

Early American soil conservationists / [by Angus McDonald]. - Washington, D.C. : U.S. Dept. of Agriculture, 1941. - 63 p. : ill., ports. ; 23 cm. - Miscellaneous publication / United States Department of Agriculture ; no. 449 . - Miscellaneous publication (United States. Department of Agriculture) ; no. 449. .

Cover title. Contribution from Soil Conservation Service.

Bibliography: p. 61-63.

agr41000763


Soil conservation--United States.

S623 / .M298

631.450973

1 / Ag84M no.449

A 1.38:449

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