Duncan, S. (1996). Office tax procedures. Nelson.
Trích dẫn kiểu ChicagoDuncan, Silvana. Office Tax Procedures. Nelson, 1996.
Deismireacht MLADuncan, Silvana. Office Tax Procedures. Nelson, 1996.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.