00268nam a2200097Ia 4500008004100000082001900041100002500060245004100085260003600126300000800162140113s9999    xx            000 0 und d  a546:581.2   K4  a"Sprague, H.B., Ed."  a"Hunger signs in crops, 3rd edition"  a1964bDavid Mckay Co.cNew York  a461