BiblioVault may have an electronic file which would meet your requirements for this title:
The Economic Approach: Unpublished Writings of Gary S. Becker
Gary S. Becker, Julio J. Elias, Casey B. Mulligan, Kevin M. Murphy and Edward L. Glaeser
Cloth: 978-0-226-82720-9
Electronic: 978-0-226-82721-6