1. “Phloem Transport.”;Aronoff,1975
2. “Phloem Translocation.”;Canny,1973
3. “Phloem Transport in Plants.”;Crafts,1971
4. “Viruses in Plant Hosts: Form, Distribution and Pathologic Effects.”;Esau,1973
5. Phloem translocation: Facts and mechanisms: A comparative survey;MacRobbie;Biol. Rev. Cambridge Philos. Soc.,1971