APA
Knight Frank and Rutley, . (19921993). The M25 office floorspace survey. - Quarter 3 1992 - Quarter 4 1992. London: Knight Frank and Rutley.
Chicago
Knight Frank and Rutley, . 19921993. The M25 office floorspace survey. - Quarter 3 1992 - Quarter 4 1992. London: Knight Frank and Rutley.
Harvard
Knight Frank and Rutley, . (19921993). The M25 office floorspace survey. - Quarter 3 1992 - Quarter 4 1992. London: Knight Frank and Rutley.
MLA
Knight Frank and Rutley, . The M25 office floorspace survey. - Quarter 3 1992 - Quarter 4 1992. London: Knight Frank and Rutley. 19921993.