00392nam a2200121Ia 4500008004100000020001800041082001800059100002100077245003900098260005000137300002700187500005600214260421b        |||||||| |||| 00| 0 eng d  a9780521831437  a530.1bZ97.FC  aZwiebach, Barton  aA first course in string theoryb/  aCambridge:bCambridge University Press,c2007  axx, 558p. Bibl. Index.  a"Purchased under NBHM grant for the year 2007-2008"