Elbaum, S. N. (2016). Grammar in context. Massachusetts: Heinle & Heinle Pub.
Chicago Style aipamenaElbaum, Sandra N. Grammar in Context. Massachusetts: Heinle & Heinle Pub, 2016.
MLA aipamenaElbaum, Sandra N. Grammar in Context. Massachusetts: Heinle & Heinle Pub, 2016.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.