BiblioVault may have an electronic file which would meet your requirements for this title:
Voices from Vilcabamba: Accounts Chronicling the Fall of the Inca Empire
Brian S. Bauer, Madeleine Halac-Higashimori and Gabriel E. Cantarutti
Paper: 978-1-60732-425-6
Electronic: 978-1-60732-426-3