Gaya APA
The Official Guide to the GRE General Test. (2017).
New York:
Mc Graw Hill.
Gaya Chicago
The Official Guide to the GRE General Test.
Third Edition.
New York:
Mc Graw Hill,
2017.
Text.
Gaya MLA
The Official Guide to the GRE General Test.
Third Edition.
New York:
Mc Graw Hill,
2017.
Text.
Gaya Turabian
The Official Guide to the GRE General Test.
New York:
Mc Graw Hill,
2017.
Print.