APA
Jonas C., . (1993). South London Branch seminar, 9 February 1993: speech by the President of the Royal Institution of Chartered Surveyors. London: RICS.
Chicago
Jonas Christopher, . 1993. South London Branch seminar, 9 February 1993: speech by the President of the Royal Institution of Chartered Surveyors. London: RICS.
Harvard
Jonas C., . (1993). South London Branch seminar, 9 February 1993: speech by the President of the Royal Institution of Chartered Surveyors. London: RICS.
MLA
Jonas Christopher, . South London Branch seminar, 9 February 1993: speech by the President of the Royal Institution of Chartered Surveyors. London: RICS. 1993.
