Hartmann, P., & Mentel, J. (2007). Interactions access: Reading (4th edition.). New york: McGraw-Hill.
Chicago Style aipamenaHartmann, Pamela., và James Mentel. Interactions Access: Reading. 4th edition. New york: McGraw-Hill, 2007.
MLA aipamenaHartmann, Pamela., và James Mentel. Interactions Access: Reading. 4th edition. New york: McGraw-Hill, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.