APA (7th ed.) Citation

TOEFL. (2016). Official Guide To The Toefl ITP Test. ERLANGGA.

Chicago Style (17th ed.) Citation

TOEFL. Official Guide To The Toefl ITP Test. ERLANGGA, 2016.

MLA (8th ed.) Citation

TOEFL. Official Guide To The Toefl ITP Test. ERLANGGA, 2016.

Warning: These citations may not always be 100% accurate.