BiblioVault may have an electronic file which would meet your requirements for this title:
A Guide to Projectile Points of Iowa, Part 1: Paleoindian, Late Paleoindian, Early Archaic, and Middle Archaic Points
Joseph A. Tiffany and Christian A. Driver
Paper: 978-1-58729-826-4
Electronic: 978-1-58729-885-1