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结果 1-10 的 274
Third in an agricultural research centennial series: Winning the west… with agricultural engineering 全文
1974
R Bainer | M Gagnon
California Agriculture - All Issues
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Directory of Open Access Journals - Sweden
The first in an agricultural research centennial series: Hilgard… California's first agricultural researcher 全文
1974
C Cass
California Agriculture - All Issues
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Directory of Open Access Journals - Sweden
Fourth in an agricultural research centennial series … Early research in soils and plant nutrition 全文
1974
W Schoonover
California Agriculture - All Issues
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Directory of Open Access Journals - Sweden
The second in an agricultural research centennial series: Soil sciences, U.C. riverside… a brief history of research contributions 全文
1974
H Chapman
California Agriculture - All Issues
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Directory of Open Access Journals - Sweden
Transport of tritium in an agricultural environment in Mexico: study programme of contamination with tritium in an agricultural area
1974
Ortiz Magana, J.R. | Romero, S.F. | Archundia, C. | Bravo, G.S. de | Nulman, R.M. de | Anaya, C. (Instituto Nacional de Energia Nuclear, Mexico City)
Food and Agriculture Organization of the United Nations - Italy
An analysis of agricultural production in Nicaragua
1974
Warnken, Philip F.
National Agricultural Library - United States of America
The agricultural machinery situation in the Philippines: an overview
1974
Southeast Asian Regional Center for Graduate Study and Research in Agriculture - Philippines
Toward developing an effective agricultural research system in the Philippines.
1974
Wolters Kluwer - United States of America
Toward developing an effective agricultural research system in the Philippines
1974
National Agricultural Library - United States of America
[An agricultural fair before the background of crises in agriculture]
1974
Isselstein, R.
Unassigned data from Germany - Germany
