BiblioVault may have an electronic file which would meet your requirements for this title:
The University of Chicago Spanish-English Dictionary, Sixth Edition: Diccionario Universidad de Chicago Inglés-Español, Sexta Edición
David A. Pharies
Paper: 978-0-226-66696-9
Cloth: 978-0-226-66695-2
Electronic: 978-0-226-66697-6