APA

National Precast Concrete Association (Canadá), International Congress of the Precast Concrete Industry (14º : 1993 : Washington E. U., . (1993). BIMB´93 International Congress of the Precast Concrete Industry. 14 th. Washington, Estados Unidos: .

Chicago

National Precast Concrete Association (Canadá), International Congress of the Precast Concrete Industry (14º : 1993 : Washington Estados Unidos), . 1993. BIMB´93 International Congress of the Precast Concrete Industry. 14 th. Washington, Estados Unidos: .

Harvard

National Precast Concrete Association (Canadá), International Congress of the Precast Concrete Industry (14º : 1993 : Washington E. U., . (1993). BIMB´93 International Congress of the Precast Concrete Industry. 14 th. Washington, Estados Unidos: .

MLA

National Precast Concrete Association (Canadá), International Congress of the Precast Concrete Industry (14º : 1993 : Washington Estados Unidos), . BIMB´93 International Congress of the Precast Concrete Industry. 14 th. Washington, Estados Unidos: . 1993.