Kravis, I. B., Heston, A. j. a., & Summers, R. j. a. (1978). International comparisons of real product and purchasing pover: By Irwing B.Krawis, Alan Heston and Robert Summers. Produced the Statistical Office of the United Nations and the World Bank. Johns Hopkins University Press.
Chicago Style (17. basım) AtıfKravis, Irving B., Alan joint author Heston, ve Robert joint author Summers. International Comparisons of Real Product and Purchasing Pover: By Irwing B.Krawis, Alan Heston and Robert Summers. Produced the Statistical Office of the United Nations and the World Bank. Baltimore: Johns Hopkins University Press, 1978.
MLA (9th ed.) AtıfKravis, Irving B., et al. International Comparisons of Real Product and Purchasing Pover: By Irwing B.Krawis, Alan Heston and Robert Summers. Produced the Statistical Office of the United Nations and the World Bank. Johns Hopkins University Press, 1978.