Author: Gangulee, N.
Publisher:George Allen and Unwin, London
Copyright:1942
Author: Field, Henry
Publisher:Field Museum of Natural History, Chicago
Copyright:1939
Author: Brash, J. C.; Jamieson, E. B.
Publisher:Oxford University, London
Copyright:1942
Author: Aggarwal, Om Prakash
Publisher:Lahore Law Depot, Lahore
Copyright:1939
Author: Frankfort, H.
Publisher:Macmillan, London
Copyright:1939
Author: Masani, R. P.
Publisher:George Allen and Unwin, London
Copyright:1939
Author: Masani, R. P.
Publisher:George Allen and Unwin Ltd., London
Copyright:1939
Author: Byvanck, A. W.
Publisher:E. J. Brill, Leiden
Copyright:1942