APA (7th ed.) Citation

Al-Abdul Wahab, H., & unknown. (1998). Laboratory study of asphalt concrete durability in Jeddah.

Chicago Style (17th ed.) Citation

Al-Abdul Wahab, H.I, and unknown. Laboratory Study of Asphalt Concrete Durability in Jeddah. 1998.

MLA (9th ed.) Citation

Al-Abdul Wahab, H.I, and unknown. Laboratory Study of Asphalt Concrete Durability in Jeddah. 1998.

Warning: These citations may not always be 100% accurate.