01034cam a2200289 4500 agr68000011 DLC 20260227111028.0 691205s1967 dcua 000 0 eng c agr68000011 U.S. Nat'l Agr. Libr. DLC DLC S21 .A856 no. 501 1 Ag84Pro no. 501 1967 United States. Soil Conservation Service. Soil conservation is easy if you do it with a plan; one step at a time. [Slightly rev. Washington, 1967] 8 p. illus. 24 cm. [United States. Dept. of Agriculture] PA- 501 Previous ed. by Kent Arthur Alverson. Soil conservation. Soil conservation. Alverson, Kent Arthur, 1915- Soil conservation is easy ... One step at a time. Program aid (United States. Department of Agriculture) ; no. 501. [United States. Department of Agriculture] PA- 501. 12330 12330