By Mikolajski, Andrew; Edwards, Jonathan
By Moody, Mary, Harkness, Peter
By Sue Phillips
By Dorling Kindersley
By deni-bown, Bown, Deni
By Desmond, Ray
By Lord, W. Anthony
By Royal Horticultural Society
By Geoffrey K. Coombs, Coombs, Geoffrey K.
By Pearson, Robert
By Robinson, Peter
By HESSAYON D. G., Hessayon, Dr. D.G., Dr. D. G. Hessayon
By Hawthorne, Linden
By Dorling Kindersley, Royal Horticultural Society
By Edwards, Jonathan
By Brickell, Christopher
By Williams, Robin, O'Brien, Ken
By Thrower, Percy
By Phillips, Sue, Sue Phillips
By Stebbings, Geoff, DK
By Bradley, John
By Martin (Editor). Parsons, Parsons, Martin (Editor).
By Anthony Huxley
By VERMEULEN, Nico
By Encyclopedia of Herb Gardening Edition: First
By McHoy, Peter