APA (7th ed.) Citation

Nasher, E., Heng, L. Y., Zakaria, Z., & Surif, S. Concentrations and Sources of Polycyclic Aromatic Hydrocarbons in the Seawater around Langkawi Island, Malaysia. Wiley.

Chicago Style (17th ed.) Citation

Nasher, Essam, Lee Yook Heng, Zuriati Zakaria, and Salmijah Surif. Concentrations and Sources of Polycyclic Aromatic Hydrocarbons in the Seawater Around Langkawi Island, Malaysia. Wiley.

MLA (9th ed.) Citation

Nasher, Essam, et al. Concentrations and Sources of Polycyclic Aromatic Hydrocarbons in the Seawater Around Langkawi Island, Malaysia. Wiley.

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