(1979). Specification for concrete non-pressure pipes. bureau of ceylon standards.
Chicago Style (17th ed.) CitationSpecification for Concrete Non-pressure Pipes. Colombo: bureau of ceylon standards, 1979.
MLA (9th ed.) CitationSpecification for Concrete Non-pressure Pipes. bureau of ceylon standards, 1979.
Warning: These citations may not always be 100% accurate.