por Hall, A. Rupert (Alfred Rupert), 1920- [autor].
por Bertoloni Meli, Domenico [autor] | University of Oxford.
por Dobbs, Betty Jo Teeter, 1930- [autor] | University of Cambridge.
por Westfall, Richard S [autor] | University of Cambridge.
por Chandrasekhar, Subrahmanyan, 1910-1995 [autor] | University of Oxford.