TY  - BOOK
AU  - Zwiebach,Barton
TI  - First course in string theory / 
SN  - 9780521176330
U1  - 539.725 
PY  - 2009///.
CY  - New Delhi : 
PB  - Cambridge University Press, 
KW  - String models.
N1  - Includes bibliographical references (p. [659]-666) and index
ER  -