APA Style
Adam, Billy. (2011).
Toefl Workshop in 30 Minutes .
Yogyakarta:
Pustaka Solomon.
Chicago Style
Adam, Billy.
Toefl Workshop in 30 Minutes.
Yogyakarta:
Pustaka Solomon,
2011.
Text.
MLA Style
Adam, Billy.
Toefl Workshop in 30 Minutes.
Yogyakarta:
Pustaka Solomon,
2011.
Text.
Turabian Style
Adam, Billy.
Toefl Workshop in 30 Minutes.
Yogyakarta:
Pustaka Solomon,
2011.
Print.