Wriggins, W. H., & Adler-Karlsson, G. (1978). Reducing global inequities. McGraw-Hill.
Citazione stile Chigago Style (17a edizione)Wriggins, W. Howard, e Gunnar Adler-Karlsson. Reducing Global Inequities. New York: McGraw-Hill, 1978.
Citatione MLA (9a ed.)Wriggins, W. Howard, e Gunnar Adler-Karlsson. Reducing Global Inequities. McGraw-Hill, 1978.