Courtesy of FAS: Lazarus, Voorhees, Wells, and Worlton, “Computing at LASL [Los Alamos Scientific Laboratory] in the 1940s and 1950s,” LASL/USDoE, ’78 (2.1MB PDF).
The report is part of FAS’s Los Alamos Technical Reports and Publications collection:
In 2002, the Los Alamos National Laboratory terminated public access to thousands of unclassified reports on nuclear science and technology as well as other historical and policy-related publications that had formerly been available on the Lab's web site as part of its Library Without Walls initiative.
Fortunately, almost all of the withdrawn reports were acquired and preserved in the public domain by researchers Gregory Walker and Carey Sublette. The document titles are indexed in four parts [...]