1. Collier L, Balows A, Sussmann M (eds.) (1998) Topley & Wilson’s Microbiology and Microbial Infections. Ninth ed. Arnold, London
2. Holt JG (1984–1989) Bergey’s Manual of Systematic Bacteriology, Vol. 1–4. Williams & Wilkins, Baltimore
3. Holt JG (1993) Bergey’s Manual of Determinative Bacteriology, 9th ed. Williams & Wilkins, Baltimore
4. Mandell GL, Bennett GE, Dolin R (eds.) (2000) Mandell, Douglas, and Bennett’s Principles and Practice of Infectious Diseases, 5th ed. Churchill Livingstone, Philadelphia
5. Murray PR, Baron EJ, Pfaller MA, Tenover FC, Yolken RH (eds.) (1999) Manual of Clinical Microbiology, 7th ed. American Society of Microbiology, Washington, DC