Progress Donasi Kebutuhan Server — Your Donation Urgently Needed — هذا الموقع بحاجة ماسة إلى تبرعاتكم
Rp 1.500.000 dari target Rp 10.000.000
Figures 11, 17, 33: Courtesy of Pauling Collection, Oregon State University Libraries, Special Collections and Archives Research Center.
Figure 36: Courtesy of the Leo Baeck Institute, New York.
Figures 26, 37: Courtesy of the Archives Georges Lemaître, Université Catholique de Louvain, Centre de Recherche sur le Terre et le Climat G. Lemaître, Louvain-la-Neuve, Belgique.
Figure 24: Courtesy of the Reel Poster Gallery, London.
Figure 14: Reprinted by permission from Nature Publishing Group, Macmillan Publishers Ltd: Nature, April 25, 1953.