APA
Joint Contracts Tribunal, . (1987). Standard form of contract 1980 edition : practice note 23 : a contract sum analysis. London: RIBA Publications Ltd.
Chicago
Joint Contracts Tribunal, . 1987. Standard form of contract 1980 edition : practice note 23 : a contract sum analysis. London: RIBA Publications Ltd.
Harvard
Joint Contracts Tribunal, . (1987). Standard form of contract 1980 edition : practice note 23 : a contract sum analysis. London: RIBA Publications Ltd.
MLA
Joint Contracts Tribunal, . Standard form of contract 1980 edition : practice note 23 : a contract sum analysis. London: RIBA Publications Ltd. 1987.