by J. Yanney Ewusie | .
by Theodosius Dobzhansky | .
by Herbert Brucker | .
by John S. Mackenzie | .
by Andre Beteille | .
by Norman R. F. Maier | .
by John Connell | Biplab Adsgupta Roy Laishley.
by Norman Birnbaum | .
by Alan E. Kazdin | .
by Margaret Lusty | .
by J.N. Horsburgh | .
by V.N.Arora | .
by F.G. Bailey | .
by Philip K. Hitti | .
by T.R. Batten | .
by Geoffrey Ostergaard | .
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