Hartmann, P. (2002). Interactions access: Reading/writing book. New York: McGraw-Hill.
Chicago Style aipamenaHartmann, Pamela. Interactions Access: Reading/writing Book. New York: McGraw-Hill, 2002.
MLA aipamenaHartmann, Pamela. Interactions Access: Reading/writing Book. New York: McGraw-Hill, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.