APA (7 ম সংস্করণ) উদ্ধৃতি

Wright, G. A. (1969). Obsidian analyses and prehistoric Near Eastern trade: 7500 to 3500 B. C. University of Michigan.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Wright, Gary A. Obsidian Analyses and Prehistoric Near Eastern Trade: 7500 to 3500 B. C. Ann Arbor: University of Michigan, 1969.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Wright, Gary A. Obsidian Analyses and Prehistoric Near Eastern Trade: 7500 to 3500 B. C. University of Michigan, 1969.