By Macdonald, I., Lowe, J.
By Janick, J., etc.
By Evans, Lloyd T.
By Chapman, Stephen R., Carter, Lark P.
By Ford-Lloyd, Brian, Jackson, Michael
By Grigg, D. B.
By Greer, Germaine
By Meg Lowman, Lowman, Dr Meg, Earle, Sylvia A
By Smil, Vaclav
By Bartow J. Elmore
By Ruxton, Graeme D., Colegrave, Nick
By Lang, Tim
By Josephson, Paul R.
By Bessire, Lucas
By Cohen, Benjamin R., Kideckel, Michael S.
By Alan Campion, Gay Hodgson
By Hurrion, David
By Downing, Elisabeth
By Marzluff, John M.
By Hayes, Denis, Boyer Hayes, Gail
By Gaff, Jackie
By Wolfensohn, Sarah, Lloyd, Maggie
By Adams BSc (Agric) Hons MIHort Dip Applied Ed, C R, Bamford BSc Hons (Agric Sci) Cert Ed, K M, Early MSc BSc Hons DTA Cert Ed, M P
By Ableman, Michael
By Halley, Ned
By Mathews, Daniel
By Bowden, Rob
By Food and Agriculture Organization of the United Nations
By Food and Agriculture Organization