JF Ptak Science Books Reference Tools series
Here’s a very useful tool for the early days of nuclear fission and atomic energy–the bibliography from William Stephen’s Nuclear Fission and Atomic Energy (published by the Science Press in 1948). The OCR is a little unsteady but the info is there even if it isn’t as clear as it might be.
The full text for the work is found at the Internet Archive, here: https://archive.org/details/nuclearfissionan030064mnb
Also see the excellent Louis Turner bibliography for nuclear fission, 1934-1940 (133 items) in an earlier post on this blog, here: https://historyofideasblog.com/thesciencebookstore/2013/08/turners-bibliographic-review-of-nuclear-fission-1934-1940.html
Partial Bibliography on Nuclear Fission and Transuranic Elements