Gregorietti, G. (1969). Jewelry through the ages. London: Hamlyn.
Trích dẫn kiểu ChicagoGregorietti, Guido. Jewelry Through the Ages. London: Hamlyn, 1969.
MLA引文Gregorietti, Guido. Jewelry Through the Ages. London: Hamlyn, 1969.
警告：这些引文格式不一定是100％准确.