Sharp, C. (1981). The economics of time. Oxford: Martin Robertson.
Trích dẫn kiểu ChicagoSharp, Clifford. The Economics of Time. Oxford: Martin Robertson, 1981.
Deismireacht MLASharp, Clifford. The Economics of Time. Oxford: Martin Robertson, 1981.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.