BiblioVault may have an electronic file which would meet your requirements for this title:
Prehispanic Settlement Patterns in the Southern Valley of Mexico: The Chalco-Xochimilco Region
Jeffrey R. Parsons, Elizabeth Brumfiel, Mary H. Parsons and David J. Wilson
Paper: 978-0-932206-88-6
Electronic: 978-1-951538-13-2