1. Arthur, J. C. (1929) The plant rusts (Uredinales). John Wiley and Sons, New York. 446 p.
2. Arthur, J. C. (1962) Manual of the rusts in the United States and Canada (revised byG. B. Cummins). Hafner Publishing Co., New York. 438 + 24 A p.
3. Butler, E. J. (1918) Fungi and disease in plants. Thacker Spink and Co., Calcutta. 547 p.
4. Commonwealth Mycological Institute (1950) Distribution maps of plant diseases. No. 212.Puccinia purpurea Cooke.
5. Commonwealth Mycological Institute (1953) Distribution maps of plant diseases. No. 279.Puccinia sorghi Schw.