Duckworth, M. (2007). Build up to countdown: (MultiROM). Oxford: Oxford University Press.
Trích dẫn kiểu ChicagoDuckworth, Michael. Build Up to Countdown: (MultiROM). Oxford: Oxford University Press, 2007.
Deismireacht MLADuckworth, Michael. Build Up to Countdown: (MultiROM). Oxford: Oxford University Press, 2007.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.