@BOOK{ Book!D - 90030100,
AUTHOR = " Michael Nest",
TITLE = "Coltan /",
LIBRARY= "کتابخانه مطالعات اسلامی به زبان‌های اروپایی",
SUBJECT = "Mines and mineral resources-- Congo (Democratic Republic),Tantalum-- Economic aspects-- Congo (Democratic Republic),Tantalum-- Political aspects-- Congo (Democratic Republic),Violence-- Congo (Democratic Republic)",
URL = "/book/90030100/Coltan/"}