by Arun Misra | .
by J Forbes Royle | .
by S K Jain | R R Rao.
by V S Agarwal | .
by P K K Nair | .
by T M Varghese | .
by T N Khoshoo | P K K Nair.
by Dasgupta, D.K | Dhuri, P. Basuchan.
by F Bouman | .
by B N Sahu | .
by Odoardo Beccari | .
by C G K Ramanujam | .
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