00280nam a2200109Ia 4500008004100000082002500041100002200066245001800088260003600106300001000142650001800152140113s9999    xx            000 0 und d  a581.45:631.81.031 J1  a"Mitchell, R. L."  aLeaf analysis  b"London : Hilger & Watts, 1951"  a176p.  aLeaf analysis