00000cam a22000003a 4500 UP-1685594773861845947 Buklod 20230619085743.0 ta rb |||| u| ta 110815s xx d r |||| u| 9780521880329 (hardback) (iLib)UPBAG-00008777754 QC 794.6 S85 Z95 2009 Zwiebach, Barton 1954- . A first course in string theory Barton Zwiebach. 2nd ed. Cambridge Cambridge University Press 2009. xxii, 673 p. ill. 26 cm. Includes bibliographical references (p. 661-666) and index. String models. UPBAG UPBAG-MAIN QC 794.6 S85 Z95 2009 Book