Douglas, S. (2002). Introduction to Quickbooks Pro 2001. New York: Glencoe/McGraw-Hill.
Chicago Style aipamenaDouglas, Sleeter. Introduction to Quickbooks Pro 2001. New York: Glencoe/McGraw-Hill, 2002.
MLA aipamenaDouglas, Sleeter. Introduction to Quickbooks Pro 2001. New York: Glencoe/McGraw-Hill, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.