Abraham Leo Wolbarst, What We Know About Penicillin and Streptomycin, B-619, 1947, id2554, Box: 4, Item: 76. Emanuel Haldeman-Julius Big Blue Books and Larger Books Collection, SC-EHJB. Special Collections & Archives. https://findingaids.csun.edu/repositories/2/archival_objects/18755 Accessed June 19, 2026.