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1Published 1985Subjects: “...Beans Africa, North....”
Book -
2Published 1988Subjects: “...Sheep Africa, North Congresses....”
Book -
3Published 1992Subjects: “...Fertilizers Africa, North Congresses....”
Book -
4Published 1981Subjects: “...Dry farming Africa, North Congresses....”
Book -
5Published 1997Subjects: “...Soil fertility Research Africa, North Congresses....”
Conference Proceeding Book -
6
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7by Jones, MichaelSubjects: “...Sustainable agriculture Africa, North Research....”
Published 1991
Book