Author: Harrison, Frederick
Publisher:John Murray, Albemarle Street, London
Copyright:1943
Author: Keith, Arthur Berriedale
Publisher:Centr. Book depo, Allahabad
Copyright:1936
Author: Feachem, Richard
Publisher:B. T. Batsford Ltd., London
Copyright:1963
Author: Garde, M. B.
Publisher:Alijah Darbar Press,gwalior, Gwalior
Copyright:1936
Author: Dutt, K. Guru
Publisher:Banglore Press, Banglore
Copyright:1943
Author: Zeuner, Frederick Everard
Publisher:Hutchinson & Co.ltd, London
Copyright:1963
Author: Nurullah, Syed Naik, J.P.
Publisher:Macmillan, Bombay
Copyright:1943
Author: Srinivasachari, C. S. Rao Bahadur
Publisher:Annamalai University, Madras
Copyright:1943
Author: Dunbar, George
Publisher:Ivor Nocholsan and Watson,London
Copyright:1936
Author: Dunbar, George
Publisher:Ivor Nicholson and Watson Limited, London
Copyright:1936
Author: Prajnanananda, Swami
Publisher:Ramakrishna Vedanta Math, Calcutta
Copyright:1963
Author: Scott, George Ryley
Publisher:T. Werner Laurie Ltd., London
Copyright:1936
Author: Spencer, L. J.
Publisher:Blackie & Son Limited, London
Copyright:1936
Author: Mookerji, Radha Kumud
Publisher:Padma Publications, Bombay
Copyright:1943