(1990). STANDARD specifications for repair of concrete M-47 (M0470000,390). Denver, Colorado: United States Department of the Interior, Bureau of Reclamation.
Cita MLA (8 ed.) (Copiar al portapapeles)STANDARD Specifications for Repair of Concrete M-47 (M0470000,390). Denver, Colorado: United States Department of the Interior, Bureau of Reclamation , 1990.