00294nam a2200109Ia 4500008004100000082002000041100002100061245003200082260004200114300001000156650001800166140113s9999    xx            000 0 und d  a577.15:66.09 M3  a" Wiseman, Alan"  aPrinciples of biotechnology  b"USA : Surrey university press, 1983"  a217p.  aBiotechnology