Williams, T. I. (1987). The history of invention: From Stone Axes to Silicon Chips. New York: Facts On File.
Trích dẫn kiểu ChicagoWilliams, Trevor I. The History of Invention: From Stone Axes to Silicon Chips. New York: Facts On File, 1987.
ציטוט MLAWilliams, Trevor I. The History of Invention: From Stone Axes to Silicon Chips. New York: Facts On File, 1987.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.