Appel, Otto 1867-1952 creator text gw Berlin P. Parey 1926 monographic ger

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3 p., l., 20 col. plates. 17 1/2 cm. von prof. dr. Otto Appel ... im auftrage des direktoriums des Vereins deutschen zuckerindustrie .... Descriptive letterpress of plate 2-20 on verso of prededing plate. Sugar beet Diseases and pests agr27000533 Library, U.S. Dept. of Agriculture 760729 20260227110947.0 agr27000533