APA (7th ed.) Citation

Quintana, J. (2004). New headway english course PET practice tests: Teacher's guide-answer key (Rev. for 2004 update.). Oxford University Press.

Chicago Style (17th ed.) Citation

Quintana, Jenny. New Headway English Course PET Practice Tests: Teacher's Guide-answer Key. Rev. for 2004 update. London: Oxford University Press, 2004.

MLA (9th ed.) Citation

Quintana, Jenny. New Headway English Course PET Practice Tests: Teacher's Guide-answer Key. Rev. for 2004 update. Oxford University Press, 2004.