APA aipamena

Simon., & Schuster. (2003). Grammar power: Essential guide for improving your grammar (2nd ed.). Tp.HCM: Nxb Trẻ.

Chicago Style aipamena

Simon., và Schuster. Grammar Power: Essential Guide for Improving Your Grammar. 2nd ed. Tp.HCM: Nxb Trẻ, 2003.

MLA aipamena

Simon., và Schuster. Grammar Power: Essential Guide for Improving Your Grammar. 2nd ed. Tp.HCM: Nxb Trẻ, 2003.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.