(1999). Life lines: Intermediate. Oxford: Oxford University Press.
Trích dẫn kiểu ChicagoLife Lines: Intermediate. Oxford: Oxford University Press, 1999.
Deismireacht MLALife Lines: Intermediate. Oxford: Oxford University Press, 1999.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.