American Water Works Association, American Water Works Association, American National Standards Institute, & American National Standards Institute. (1987). AWWA standard for reinforced concrete pressure pipe, steel cylinder type, pretensioned, for water and other liquids. Denver, Colo.: The Association.
Citación estilo ChicagoAmerican Water Works Association, American Water Works Association, American National Standards Institute, y American National Standards Institute. AWWA Standard for Reinforced Concrete Pressure Pipe, Steel Cylinder Type, Pretensioned, for Water and Other Liquids. Denver, Colo.: The Association, 1987.
Cita MLAAmerican Water Works Association, American Water Works Association, American National Standards Institute, y American National Standards Institute. AWWA Standard for Reinforced Concrete Pressure Pipe, Steel Cylinder Type, Pretensioned, for Water and Other Liquids. Denver, Colo.: The Association, 1987.