@BOOK{ Book!D - 98998477,
AUTHOR = "/ Martin Holden , Consulting editor E. A. Mathez, Principal photography by: the British Museum,Holden ",
TITLE = "The encyclopedia of gemstones and minerals",
LIBRARY= "کتابخانه مرکزی و مرکز اسناد دانشگاه تهران",
SUBJECT = "Gems -- Encyclopedias,Mineralogy -- Encyclopedias",
URL = "/book/98998477/The-encyclopedia-of-gemstones-and-minerals/"}