POWERED AUGER AIDS IN PLANTING MOTHER BEETS = UN TARAUD A MOTEUR POUR LA PLANTATION DES PLANTS DE BETTERAVESZIELKE RC; HOGABOAM GJ.1971; J. AMER. SOC. SUGAR BEET TECHNOLOGISTS; U.S.A.; DA. 1971; VOL. 16; NO 7; PP. 605-606Serial Issue

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