Trafalgar House Construction Holdings Limited & Chartered Institute of Building. (1991). List of building courses. Chartered Institute of Building.
Citazione stile Chigago Style (17a edizione)Trafalgar House Construction Holdings Limited e Chartered Institute of Building. List of Building Courses. Kings Ride, England: Chartered Institute of Building, 1991.
Citatione MLA (9a ed.)Trafalgar House Construction Holdings Limited e Chartered Institute of Building. List of Building Courses. Chartered Institute of Building, 1991.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.