Sugars, B. J. (2006). Instant profit. New York: McGraw-Hill.
Chicago Style aipamenaSugars, Bradley J. Instant Profit. New York: McGraw-Hill, 2006.
MLA aipamenaSugars, Bradley J. Instant Profit. New York: McGraw-Hill, 2006.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.