Gaya APA

Sharpe, P, J. (2013). TOEFL iBT Audio CD Pack & CD-ROM (Ed. 14). : Barrons Educational Series, Inc..

Gaya MLA

Sharpe, Pamela, J.. "TOEFL iBT Audio CD Pack & CD-ROM". Ed. 14 : Barrons Educational Series, Inc., 2013. CD-ROM.