APA Style
Official TOEFL iBT Tests with audio Vol.1. (2013).
New York:
McGraw-Hill.
Chicago Style
Official TOEFL iBT Tests with audio Vol.1.
.
New York:
McGraw-Hill,
2013.
Text.
MLA Style
Official TOEFL iBT Tests with audio Vol.1.
.
New York:
McGraw-Hill,
2013.
Text.
Turabian Style
Official TOEFL iBT Tests with audio Vol.1.
New York:
McGraw-Hill,
2013.
Print.