Não informado. (1972). French techniques: Building, civil engineering and townplannin. Centre National du Commerce Exterieur.
Chicago-referens (17:e uppl.)Não informado. French Techniques: Building, Civil Engineering and Townplannin. Paris: Centre National du Commerce Exterieur, 1972.
MLA-referens (8:e uppl.)Não informado. French Techniques: Building, Civil Engineering and Townplannin. Centre National du Commerce Exterieur, 1972.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.