00312nam a2200097Ia 4500008004100000082002700041100005000068245004400118260004400162300000800206140113s9999    xx            000 0 und d  a632.939.1:632.934   K8  a"Labrezque, German.C.. And Smith, Carrol. N."  aPrinciples of Insect chemosterilization  a1968bAppleton-Century-CraftscNew York  a354