Acatos, Sylvio & Bruggmann, M. Die Pueblos, Zürich Bär 1989
Balfour-Paul, Jenny. Indigo. British Museum Press 1998
Brewer, Redford & Redford: Domestic Plants and Animals: the Egyptian Origins. Warminster, Aris
Brunello Franco.: The Art of Dyeing in the history of mankind. Neri Posa, Vincenza1973.
Brücher, Heinz: Tropische Nutzpflanzen. Berlin, Heidelberg New York Springer 1977.
Cardon, Dominique: Guide des teintures naturelles. Neuchâtel Paris Delachaux et Niestlé 1990.
Cheng Weiji: History of Textile Technology of Ancient China. New York Science Press1992
Dajoz, Roger: Insects and Forests. London, Paris, New York Intercept 2000 (gall wasp dr)
Herer, Jack: Die Wiederentdeckung der Nutzpflanze Hanf, Cannabis Marihuana. Frankfurt am Main
Lyles, J N: The Art and Craft of Natural Dyeing; University of Tennessee Press, Knoxville 1990
Munro, John Meiklejohn: Cotton. Harlow Longman Scientific and Technical New York John Wiley
Neu, Rainer & Marie-Paule. Innenansichten Philippinen. Munster, Hamburg ,Lit 1995
Pospelova, Galina: Flachsanbau in der Sowjetunion.Berlin. Duncker und Humblot 1989
Picton, John: African textiles. London British Museum 1979. (cottonafrica pix)
Rätsch, Christian. Enzyklopädie der Psychoaktiven Pflanzen. Stuttgart, AT 1998
Robinson, Rowan. Hanf.Koln, VGS 1996
Roth, Kormann, Schweppe. Färberpflanzen, Pflanzenfarben. Landsberg/Lech 1992
Sagunski, Lichtner, Hembd: Hanf, das praxisbuch. Ludwig, Munchen 1996 (cottonspritz pix)
Viseux, Micheline: Le coton, l'impression. Thonon-les-Bains Editions de l'Albaron 1991. (cotton boll pix)

new agriculturalist online
http://www.new-agri.co.uk/99-4/focuson/focuson5.html
Biodiversity Conservation Network
http://www.bcnet.org/learning/ar97/97_mindanao12.htm
Plants For a Future Databsae
http://www.ibiblio.org/pfaf/D_search.html

Special thanks to Bruno Erny and the Bot.Gart. Crew for their support, to Heinz Schneider and Patrick Cech for their Technical Support and to Jenny Balfour-Paul.