00553nam a2200193Ia 4500020001500000082001700015100001800032245002100050260005200071300002700123490003400150500000500184690000600189700000500195952011500200964001700315921001000332999001700342  a0821828770  a512bB268.AM  aBarr, Michael  aAcyclic modelsb  aProvidencebAmerican Mathematical Societyc2002  axi, 179p. Bibl. Index.  aCRM Monograph Series v v. 17  a  a   a  00104070aISIbISId2003-03-25eHBAg234857.00l0o512 B268.AMpDP25774r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a22212  c22212d22212