Wriggins, W. H. (1978). Reducing global inequities. McGraw-Hill Book.
Cita Chicago (17th ed.)Wriggins, W. Howard. Reducing Global Inequities. New York: McGraw-Hill Book, 1978.
Cita MLA (9th ed.)Wriggins, W. Howard. Reducing Global Inequities. McGraw-Hill Book, 1978.
Atenció: Aquestes cites poden no estar 100% correctes.