00430nam a2200169Ia 4500001000900000003000500009008004100014010001100055040000900066082001800075100002600093245006700119260002500186300001100211440002400222650001400246Para_526CHAP220125s1991    xx            000 0 und d  a199281  cCHAP  aPA 616.079 I4  aPaul, William E., ed.  aImmunology recognition and response /c ed. by William E. Paul  aNew York :b Freeman  a168 p.  aScientific american  aInmunidad