(1973). Computer techniques 1973: Billing systems : a report of a conference on computer-aided billing systems organised by the Royal Institution of Chartered Surveyors (Quantity Surveyors Division) at the Russell Hotel, London WC1 on 9th January 1973. London: Royal Institution of Chartered Surveyors.
Παραπομπή Chicago StyleComputer Techniques 1973: Billing Systems : A Report of a Conference On Computer-aided Billing Systems Organised By the Royal Institution of Chartered Surveyors (Quantity Surveyors Division) At the Russell Hotel, London WC1 On 9th January 1973. London: Royal Institution of Chartered Surveyors, 1973.
Παραπομπή MLAComputer Techniques 1973: Billing Systems : A Report of a Conference On Computer-aided Billing Systems Organised By the Royal Institution of Chartered Surveyors (Quantity Surveyors Division) At the Russell Hotel, London WC1 On 9th January 1973. London: Royal Institution of Chartered Surveyors, 1973.