APA
Royal Institution of Chartered Surveyors, . (1991). RICS: fit for the 21st century. London: RICS.
Chicago
Royal Institution of Chartered Surveyors, . 1991. RICS: fit for the 21st century. London: RICS.
Harvard
Royal Institution of Chartered Surveyors, . (1991). RICS: fit for the 21st century. London: RICS.
MLA
Royal Institution of Chartered Surveyors, . RICS: fit for the 21st century. London: RICS. 1991.