@BOOK{ Book!D - 99012008,
AUTHOR = "Singer",
TITLE = "A history of technology",
LIBRARY= "کتابخانه مرکزی و مرکز اسناد دانشگاه تهران",
SUBJECT = "Technology -- Hist,Civilization-- Hist",
URL = "/book/99012008/A-history-of-technology/"}