APA (7 ম সংস্করণ) উদ্ধৃতি

Kravis, I. B., & Lipsey, R. E. (1966). Comparative prices of nonferrous metals in international trade, 1953-64. National Bureau of Economic Research.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Kravis, Irving B., এবং Robert E. Lipsey. Comparative Prices of Nonferrous Metals in International Trade, 1953-64. New York: National Bureau of Economic Research, 1966.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Kravis, Irving B., এবং Robert E. Lipsey. Comparative Prices of Nonferrous Metals in International Trade, 1953-64. National Bureau of Economic Research, 1966.