APA Style

Donovan, G., Ariany, W, W. (2009). English 911: Rescue Your English + Audio CD ( Upper Intermediate) . Jakarta: Elex Media Komputindo.

MLA Style

Donovan, Gerald., Ariany, Winie, Widya. "English 911: Rescue Your English + Audio CD ( Upper Intermediate)". Jakarta: Elex Media Komputindo, 2009. Text.