By Evans, Lloyd T.
By Janick, J., etc.
By Macdonald, I., Lowe, J.
By Bradbeer, J.W.
By Chambers, Jonathan David, Mingay, Gordon E.
By Pescod, M.B., Arar, A.
By Youdeowei, Anthony, Service, M. W.
By Rowell, David L.
By Tanner, Gill, Wood, Tim, Murray, Maggie
By Amanda O'Neill
By Piercy, Catherine Nelson
By Bartlett, Richard
By O'Neill, Amanda
By Organisation for Economic Co-operation and Development, OECD
By collectif
By Krogsgaard-Larsen, Povl
By Downing, Elisabeth
By Verhoef-Verhallen, Esther J.J., Rijis, Aad
By R. Cavallo
By Leeuwis, Cees
By Lemmens, R.H.M.J., Soerianegara, I, Wong, W. C.
By Food and Agriculture Organization of the United Nations
By Reynolds, J.Eric, Reynolds, J.Eric
By Food and Agriculture Organization of the United Nations - FAO
By Dixon, Prof. John, etc.
By Organization for Economic Co-operation and Development
By Louise Brown