00256nam a2200097Ia 4500008004100000082002600041100002000067245002900087260003200116650001000148220204s9999    xx            000 0 und d  a632.51:631.348.4bMUZ  aMUZIK, Thomas J 0aWeed biology and control  aNew YorkbMcGraw Hillc1970  aWeeds