00279nam a2200097Ia 4500008004100000040002900041050002500070100001700095245003400112260003500146221021s9999||||xx |||||||||||||| ||und||  cChuka University Library  aQH 442.2 b .B7 1990  aBrown, T. A. 0aGene cloning:an introdcution   aLondonbChapman and hallc1990