Precious Stones and Minerals

Antzeko izenburuak

• Key to Precious Stones
  nork: Spencer, L.J
  Argitaratua: (1952)
• Gems and precious stones
  nork: Krishnamoorthy,V
  Argitaratua: (1996)
• Guide to Gems and Precious Stones
  nork: Cipriani,Curzio
  Argitaratua: (1986)
• Precious soil
  nork: Bondi, Hermann
  Argitaratua: (1969)
• Simon & Schuster`s guide to gems and precious stones
  nork: Borelli, Alessandro, et al.
  Argitaratua: (1986)