Human health and environment

Eitemau Tebyg

• Aquatic animal quarantine and health certification in asia
  gan: John Humphrey
  Cyhoeddwyd: (2005)
• Aquatic animal quarantine and health certification in asia
  gan: John Humphery
  Cyhoeddwyd: (1996)
• Aquatic animal quarantine and health certification in asia
  gan: John Humphrey
  Cyhoeddwyd: (2005)
• Epidemiology An introductory text
  gan: Mausner Judiths, et al.
  Cyhoeddwyd: (1974)
• Fundamentals of animals hygine and epidemiology
  gan: D C Thapliyal, et al.
  Cyhoeddwyd: (1996)