1. BERGEY D. H. ET AL. 1923 Manual of determinative bacteriology 1st ed. Williams & Wilkins Baltimore pp. 380-388.
2. BERGEY D. H. ET AL. 1925 Ibid. 2d ed. pp. 388-397.
3. BERGEY D. H. ET AL. 1934 Ibid. 4th ed. pp. 545-557.
4. BERGEY D. H. ET AL. 1939 Ibid. 5th ed. pp. 791-809.
5. BROOKS R. F. 1942 A study of certain members of the genus Corynebacterium from animal sources. Ph.D. Thesis Cornell University pp. 85.