I have severral of Bellah books. There are old and I;ve had to glue them back together, but they sit on my favorite shelf!
I found a couple of copies of “The Gods of Yesterday” listed on ABE for $60+. Was hoping to find a biography of Bellah. According to Wikipedia, he served in Burma with the First Air Commandos (Col. Phil Cochran/”Flip Corkin”) You can’t make that stuff up! Started WW2 as a 40+ year old lieutenant, finished as a colonel.