Environmental aspects of natural resource management-agriculture and soils /
Penn , Raymond , J.
Environmental aspects of natural resource management-agriculture and soils / Raymond J. Penn. - Rome : Food and Agriculture Organization Services Division , 1 972. - iv. , 39 p. ; 27 cm. - FAO Agricultural Services Bulletin ; No.14. .
Man --Influence of nature.------
Agriculture.--Influence of nature.------
Environmental aspects of natural resource management-agriculture and soils / Raymond J. Penn. - Rome : Food and Agriculture Organization Services Division , 1 972. - iv. , 39 p. ; 27 cm. - FAO Agricultural Services Bulletin ; No.14. .
Man --Influence of nature.------
Agriculture.--Influence of nature.------