1. Baker, H. G. 1965. Characteristics and modesof origin of weeds. Pages 147-168 in H. G.Baker and G. L. Stebbins, eds. The Geneticsof Colonizing Species. Academic Press, NewYork.BakerCharacteristics and modes of origin of weeds147The Genetics of Colonizing Species1965
2. - 1972. Migrations of weeds. Pages327-347 in D. H. Valentine, ed. Taxonomy,Phytogeography and Evolution. AcademicPress, London.BakerMigrations of weeds327Taxonomy, Phytogeography and Evolution1972
3. Contamination of seed crops
4. BinaryAgrobacteriumvectors for plant transformation