Author
Thünen , Johann Heinrich von (1783-1850)
4
Bensing, Franz
3
Koenig, Francis P.
3
Roeder, A.
3
Ruhland, Gustav 1860-1914
3
Aereboe, Friedrich 1865-1942
2
Goldstein, Joseph
2
Goltz, Theodor <<von der>>, 1836-1905
2
Gothein, Georg 1857-1940
2
Jentsch, Carl
2
Kablukov, Nikolaj A. 1849-1919
2
Meyer, Rudolph
2
Mugdau, Otto
2
Rau, Karl Heinrich 23.11.1792-18.03.1870
2
Ritter, Kurt 1894-1984
2
Rothkegel, Walter
2
Schullern-Schrattenhofen, Hermann 1861-1931
2
Schumacher-Zarchlin , H
2
Schuster, Moritz
2
Seligman, Edwin Robert Anderson 1861-1939
2
Stechele, Johann
2
Taylor, Henry C.
2
Wilckens, Martin
2
Zuns, Julius
2
Anton, Günther K. 1864-1924
1
Augé-Laribé, Michel
1
Beckmann, Fritz
1
Bell, Benjamin
1
Below, Georg <<von>> 1858-1927
1
Boyle, James E.
1
Brinkmann, Theodor 1877-1951
1
Brinkmann, Theodor, 1877-1951
1
Broussonet, Pierre Marie Auguste
1
Buchenberger, Adolf 1848-1904
1
Buchenberger, Adolf, 1848-1904
1
Bund der Landwirte
1
Business Men's Commission on Agriculture
1
Carey, Henry Charles 1793-1879
1
Carl, Alfred
1
Channing, Francis Allston
1
Cools, A. ¬de
1
Cooper, William E.
1
David, Eduard 1863-1930
1
Denny, Frank Earl
1
Diestel, Friedrich
1
Dietze, Constantin von 1891-1973
1
Dietzel, Heinrich 1857-1935
1
Dove, Heinrich Wilhelm 1853-1931
1
Dove, Heinrich Wilhelm, 1853-1931
1
Dymock, Cressy
1
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