title: The classification and nomenclature of viruses. Summary of results of meetings of the International Committee on Taxonomy of Viruses in Madrid, September 1975.
mesh_terms: D001435:Bacteriophages / Q000145:classification; D007304:Insect Viruses / Q000145:classification; D010942:Plant Viruses / Q000145:classification; D009626:Terminology as Topic; D014780:Viruses / Q000145:classification*