Harshbarger, R. J. (1976). Business mathematics. Harper & Row.
Chicago Style aipamenaHarshbarger, Ronald J. Business Mathematics. New York: Harper & Row, 1976.
MLA aipamenaHarshbarger, Ronald J. Business Mathematics. Harper & Row, 1976.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.