(1951). Sweet's File architectural: A file of catalogs designed for the use of architects, engineers, building contractors, and others whose practice it is to select, specify or purchase building materials, equipment and allied services. New York: Sweet's Catalog Service.
Παραπομπή Chicago StyleSweet's File Architectural: A File of Catalogs Designed for the Use of Architects, Engineers, Building Contractors, and Others Whose Practice It Is to Select, Specify or Purchase Building Materials, Equipment and Allied Services. New York: Sweet's Catalog Service, 1951.
Παραπομπή MLASweet's File Architectural: A File of Catalogs Designed for the Use of Architects, Engineers, Building Contractors, and Others Whose Practice It Is to Select, Specify or Purchase Building Materials, Equipment and Allied Services. New York: Sweet's Catalog Service, 1951.