APA (7th ed.) Citation

Abdullah Al-Haj, N. A., Shamsudin, M. N., Zamri, H. F., & Abdullah, R. (2008). Extraction of essential oil from Nigella sativa using supercritical carbon dioxide: Study of antibacterial activity. Science Publications.

Chicago Style (17th ed.) Citation

Abdullah Al-Haj, Nagi Ahmed, Mariana Nor Shamsudin, Hana Farizah Zamri, and Rasedee Abdullah. Extraction of Essential Oil from Nigella Sativa Using Supercritical Carbon Dioxide: Study of Antibacterial Activity. Science Publications, 2008.

MLA (9th ed.) Citation

Abdullah Al-Haj, Nagi Ahmed, et al. Extraction of Essential Oil from Nigella Sativa Using Supercritical Carbon Dioxide: Study of Antibacterial Activity. Science Publications, 2008.

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