00469nam a2200145Ia 4500008004100000082001900041100002600060245003700086260004500123300001000168650002000178942000700198952010100205999001700306140113s9999    xx            000 0 und d  a581.4:581.6 G8  a" Hayward, Herman E."  aThe structure of economic plants  b"New York : The Macmillan company, 1938"  a674p.  aEconomic plants  cBK  00104070aKYMbKYMd2014-01-13l0o581.4:581.6 G8pKBK249r2014-01-13 00:00:00w2014-01-13yBK  c63357d63357