00343nam a2200121Ia 4500008004100000082003400041100002800075245002800103260002700131300001300158600003200171650001800203140224s9999    xx            000 0 und d  a578.085.23.575.82(082.2) M3.4  aWilliamson, Robert, ed.  aGenetic Engineering v.4  aLondonbAcademicc1983  axi,185p.  aEdited by Robert Williamson  aBiotechnology