APA
Royal Town Planning Institute, . (1993). The character of conservation areas: a study commissioned from Chesterton Consulting and the University of Central England. London: RTPI.
Chicago
Royal Town Planning Institute, . 1993. The character of conservation areas: a study commissioned from Chesterton Consulting and the University of Central England. London: RTPI.
Harvard
Royal Town Planning Institute, . (1993). The character of conservation areas: a study commissioned from Chesterton Consulting and the University of Central England. London: RTPI.
MLA
Royal Town Planning Institute, . The character of conservation areas: a study commissioned from Chesterton Consulting and the University of Central England. London: RTPI. 1993.