APA (7th ed.) Citation

Bloch, H., Dockery, A. M., MacDonald, G., & Sapsford, D. (2003). Trends in the prices of primary commodities over the 20th century. Institute for Research into International Competitiveness.

Chicago Style (17th ed.) Citation

Bloch, Harry, Alfred Michael Dockery, Garry MacDonald, and D. Sapsford. Trends in the Prices of Primary Commodities over the 20th Century. Institute for Research into International Competitiveness, 2003.

MLA (9th ed.) Citation

Bloch, Harry, et al. Trends in the Prices of Primary Commodities over the 20th Century. Institute for Research into International Competitiveness, 2003.