A First Course in String Theory, 2nd - Hardcover, by Zwiebach Barton - Very Good

First Course in String Theory by Barton Zwiebach hc

A First Course in String Theory, 2nd Edition - Hardcover - GOOD

A First Course in String Theory, 2nd Edition, Zwiebach, Barton Book

A First Course in String Theory, 2nd Edition

A First Course in String Theory, Barton Zwiebach

A First Course in String Theory 2nd Edition Barton Zwiebach

A First Course in String Theory - Hardcover By Zwiebach, Barton - GOOD