Author: Quinton, R.F.
Publisher:Longmans Green, calcutta
Copyright:1910
Author: Parry, L.A
Publisher:John Bale, Sons and Danielsson, Ltd., London
Copyright:1931
Author: Banerjee, Srikumar
Publisher:William And Norgate, London
Copyright:1931
Author: Hasluck, F.W.
Publisher:University Press, Cambridge
Copyright:1910
Author: Oechelhaeuser, A von
Publisher:Verlag von E. A. Seemann, Leipzig
Copyright:1910
Author: Symonds, Percival M.
Publisher:The Century Co., London
Copyright:1931
Author: Hackmann.H
Publisher:koninklijke akademie van wetenschappen,Amsterdam
Copyright:1931
Author: Duncan, J. Garrow
Publisher:Society for Promoting, London
Copyright:1931
Author: Shaw, Bernard
Publisher:Constable and Company, London
Copyright:1931
Author: Thompson, James Westfall
Publisher:Frederick Ungar Publishing Co., New York
Copyright:1931