Copper Development Association (Great Britain). (1962). Copper through the ages (18th rev. imp.). Copper Development Association.
Chicago Style (17th ed.) CitationCopper Development Association (Great Britain). Copper Through the Ages. 18th rev. imp. London: Copper Development Association, 1962.
ציטוט MLACopper Development Association (Great Britain). Copper Through the Ages. 18th rev. imp. Copper Development Association, 1962.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.