Cita APA

Firsten, R., & Richard Firsten. (2008). Grammar connection 2: Structure through content. Australia,Boston: Thomson Heinle.

Chicago Style Citation

Firsten, Richard, i Richard Firsten. Grammar Connection 2: Structure Through Content. Australia,Boston: Thomson Heinle, 2008.

Cita MLA

Firsten, Richard, i Richard Firsten. Grammar Connection 2: Structure Through Content. Australia,Boston: Thomson Heinle, 2008.

Atenció: Aquestes cites poden no estar 100% correctes.