Harris, S. E. (1970). Economics of Harvard. McGraw-Hill.
Cita Chicago (17th ed.)Harris, Seymour Edwin. Economics of Harvard. New York: McGraw-Hill, 1970.
Cita MLA (9th ed.)Harris, Seymour Edwin. Economics of Harvard. McGraw-Hill, 1970.
Atenció: Aquestes cites poden no estar 100% correctes.