Ahmad, S., & unknown. (2020). Compliance criteria for quality concrete.
Chicago Style (17th ed.) CitationAhmad, Shamsad, and unknown. Compliance Criteria for Quality Concrete. 2020.
MLA (9th ed.) CitationAhmad, Shamsad, and unknown. Compliance Criteria for Quality Concrete. 2020.
Warning: These citations may not always be 100% accurate.