Jahresberichte der Pflanzenschutzämter /
Deutscher Pflanzenschutzdienst ; im Auftrage des Bundesministers für Ernährung, Landwirtschaft und Forsten ; herausgegeben von der Biologischen Bundesanstalt für Land- und Forstwirtschaft.
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Item Link | Original Source |
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Limited (search only) 1952 1952 | The Ohio State University |
Limited (search only) 1953-54 | University of California |
Limited (search only) 1953 1953 | The Ohio State University |
Limited (search only) 1954 1954 | The Ohio State University |
Limited (search only) 1955-56 | University of California |
Limited (search only) 1955 1955 | The Ohio State University |
Limited (search only) 1956 1956 | The Ohio State University |
Limited (search only) 1957-58 | University of California |
Limited (search only) 1957 1957 | The Ohio State University |
Limited (search only) 1958 1958 | The Ohio State University |
Limited (search only) 1959 1959 | The Ohio State University |