Most of Lomax, if not all, has been republished in low cost paperback format, from the 1980's on.If you go to Amazon.com, prefereably through the link on the support Mudcat page, accessed by clicking on the fish jumping out of the banjo, up top, there are a lot of Lomax books there in a great variety of price ranges.
You might also check www.bookfinder.com
Good luck,
kat