00402nam a2200133 a 450000500170000002000150001708200200003210000240005224500560007626000370013230000210016949000510019070000270024120251203091911.0  a079233499X  a514.72,bD, bor  aBorisovich, Yuri G.  aIntroduction to differential and algebraic topology  aDordrechtbKluwer Academicc1980  aix,492p.c24 cm.  aKluwer Texts in the mathematical sciencesdv.9  aBliznyakov, Nikolai M.