TY - BOOK ID - 127687477 TI - Gemstones AU - Smith, George Frederick Herbert AU - Phillips, Frank Coles PY - 1972 SN - 0412108909 PB - London : Chapman and Hall, DB - UniCat KW - Precious stones. UR - https://www.unicat.be/uniCat?func=search&query=sysid:127687477 AB - ER -