By NAP
By Unidentified Author
By C. Devendra, G. B. McLeroy
By C. Gall
By J.P. Gaillard, J. Godefroy
By Doggett, Hugh, Ph.D.
By Hartley, C.W.S.
By Grist, D. H.
By Wood BA DTA, G. A. R., Lass B.Sc. DTA, R. A.
By Munro, J. M.
By Webster, C. C., Baulkwill, W. J.
By Samson, J. A.
By Wrigley, Gordon
By H. D. Tindall
By F. Blackburn
By R. H. Stover, N. W. Simmonds
By G. W. Lock
By T. Eden
By J. A. Eusebio
By Daisy E. Kay
By E. A. Weiss
By Purseglove, John William, Green, C L, Brown, D.G., Robbins, S.R.J.
By Burton, W. G.
By Singh, SR
By National Research Council, Policy and Global Affairs, Board on Science and Technology for International Development, Panel on Vetiver
By Humphreys, L. R.
By Purseglove, J. W., Green, C. L., Brown, E. G., Robbins, S. R. J.
By Gosden, Chris, Hather, Jon G.
By E.N. Anderson