International encyclopaedia of ecology and environment Vol 1

Eitemau Tebyg

• International encyclopaedia of ecology and environment Vol 1
  gan: Indian institute, of ecology and environment
  Cyhoeddwyd: (1994)
• International encyclopaedia of ecology and environment Vol 5
  gan: Indian institute of, Ecology and environment
  Cyhoeddwyd: (1994)
• International encyclopaedia of ecology and environment Vol 2
  gan: Indian Institute, of ecology and environment
  Cyhoeddwyd: (1994)
• International encyclopaedia of ecology and environment Vol 7
  gan: Indian institute of, Ecology and environment
  Cyhoeddwyd: (1994)
• International encyclopaedia of ecology and environment Vol 9
  gan: Indian institute of, ecology and environment
  Cyhoeddwyd: (1994)