1. 7 lessons bindweed is trying to teach me;Alvardo;Orion,2016
2. Roots of water hyacinth may be harvested for gold;Anon.;Weed Trees Turf.,1976
3. Dandelion Recipe Book;Anon.,1979
4. Quarterly Report if Selected Research Projects;Anon.,1992
5. Agroecology: The Scientific Basis of Alternative Agriculture;Altieri,1985