por Walling, Sydney Arthur [autor] | Hill, John Campbell, 1888- [autor] | University of Cambridge.
por Phillips, E. G. (Edgar Giraldus) [autor] | University of Cambridge.
por Whittaker, E. T. (Edmund Taylor), 1873-1956 [autor] | Watson, George Neville, 1886- [autor] | University of Cambridge.
por Chapman, G. P. (Geoffrey Peter) [editor] | Chatham, C. A [editor] | Ainsworth, G. C. (Geoffrey Clough), 1905- [editor] | University of Cambridge.
por Filon, Louis Napoleon George, 1875- [autor] | University of Cambridge.