Author: Harrison, Frederick
Publisher:John Murray, Albemarle Street, London
Copyright:1943
Author: Aurobindo
Publisher:Aurobindo Ashram, Pondicherry
Copyright:1952
Author: Feachem, Richard
Publisher:B. T. Batsford Ltd., London
Copyright:1963
Author: Dutt, K. Guru
Publisher:Banglore Press, Banglore
Copyright:1943
Author: Lan, Funf Yu-
Publisher:George Allen, London
Copyright:1952
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: Prajnanananda, Swami
Publisher:Ramakrishna Vedanta Math, Calcutta
Copyright:1963
Author: Sinha, Jadunath
Publisher:Sinha Publishing House, Calcutta
Copyright:1952
Author: Gupta, Surendra Nath Das
Publisher:The Syndics of the Cambridge Univercity Press:
Copyright:1952
Author: Dasgupta, Surendranath
Publisher:The University press, Cambridge
Copyright:1952
Author: Mookerji, Radha Kumud
Publisher:Padma Publications, Bombay
Copyright:1943
Author: Keenan, John L.
Publisher:Duell, Sloan and Pearce, New York
Copyright:1943
Author: Banerjee, Arun Kumar
Publisher:Republic Book Syndicate, Calcutta
Copyright:1952