CONSTRUCTION, i. c. (1998). Constructors Key Guide To Pfi Construction Industry Council. Thomas Telford.
Chicago-viite (17. p.)CONSTRUCTION, industry council. Constructors Key Guide To Pfi Construction Industry Council. Thomas Telford, 1998.
MLA-viite (8. p.)CONSTRUCTION, industry council. Constructors Key Guide To Pfi Construction Industry Council. Thomas Telford, 1998.
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