O'Donnell, E., Rowland, K. F., & Firth, C. B. (1964). Things made from gold, silver & precious stones (2. impression.). Ginn.
Citazione stile Chigago Style (17a edizione)O'Donnell, E., K. F. Rowland, e Catherine B. Firth. Things Made from Gold, Silver & Precious Stones. 2. impression. London: Ginn, 1964.
Citatione MLA (9a ed.)O'Donnell, E., et al. Things Made from Gold, Silver & Precious Stones. 2. impression. Ginn, 1964.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.