Soil conservation : an international study /
Food and Agriculture Organization of the United Nations.
- Washington : [FAO], 1948.
- viii, 189 p. : ill., fold. map. ; 23 cm.
- Food and Agriculture Organization of the United Nations. FAO agricultural studies, ; no. 4 .
Includes bibliographical references.
Soil conservation.
631.45 / FOS
Includes bibliographical references.
Soil conservation.
631.45 / FOS